Automatic volatile phenol analysis device

Abstract

The invention provides a volatile phenol automatic analysis device, which comprises an execution mechanism, which comprises a mechanical arm terminal and a pipeline structure, and the mechanical arm terminal is connected with the pipeline structure; the valve body mechanism comprises a first valve body structure, a second valve body structure, a third valve body structure and a fourth valve body structure, the first valve body structure and the second valve body structure are respectively connected with the pipeline structure, and the third valve body structure is respectively connected with the fourth valve body structure and the pipeline structure; the distillation mechanism is connected with the fourth valve body structure. The pipeline structure acts through the mechanical arm terminal, after a sample is input, the distillation mechanism automatically conducts distillation collection through cooperation of a third valve body structure and a fourth valve body structure, then under cooperation of a first valve body structure and a second valve body structure, reagents are automatically added, mixing, automatic spectrum detection and the like are conducted, and finally data are processed and output. In the whole process, participation of testers can be reduced, contact between the testers and toxic reagents is reduced, and the sample treatment accuracy, reliability and efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of volatile phenol determination technology, and more specifically, to an automated volatile phenol analysis device. Background Technology

[0002] Volatile phenols in water can be classified into volatile phenols and non-volatile phenols based on whether they can evaporate with water vapor. They pose significant health risks to crops, aquatic organisms, and humans. While natural water generally does not contain phenols, pollution from certain industrial wastewaters may introduce phenolic compounds, making volatile phenols a mandatory test item in water quality monitoring. Currently, there are many analytical methods for volatile phenols, with the most commonly used method being the 4-aminoantipyrine spectrophotometric method.

[0003] In existing technologies, the detection of volatile phenols in water is usually done manually. The detection process is complicated, including sample injection, addition and mixing of different reagents, distillation and fraction collection, and finally manual colorimetric calculation of concentration. This results in a huge workload for staff, long detection time, low work efficiency, high error rate and low accuracy of manual analysis. Summary of the Invention

[0004] The purpose of this application is to provide an automated volatile phenol analysis device that can reduce the involvement of testing personnel, reduce the contact between testing personnel and toxic reagents, and improve sample processing efficiency, reliability and accuracy.

[0005] In a first aspect, embodiments of this application provide an automatic volatile phenol analysis device, comprising: an actuator including a robotic arm terminal and a pipeline structure, the robotic arm terminal being connected to the pipeline structure; a valve body mechanism including a first valve body structure, a second valve body structure, a third valve body structure, and a fourth valve body structure, the first valve body structure and the second valve body structure being respectively connected to the pipeline structure, the third valve body structure being respectively connected to the fourth valve body structure and the pipeline structure; and a distillation mechanism connected to the fourth valve body structure.

[0006] In the above-mentioned process, the first, second, third, and fourth valve body structures are respectively connected to the pipeline structure. The pipeline structure is operated by a robotic arm terminal. After the sample is input, the distillation mechanism automatically distills and collects the sample through the cooperation of the third and fourth valve body structures. Subsequently, with the cooperation of the first and second valve body structures, reagents are automatically added and mixed, and automatic spectral detection is performed. Finally, the data is processed and output. The entire process can reduce the involvement of testing personnel, reduce the contact between testing personnel and toxic reagents, and improve the accuracy, reliability, and efficiency of sample processing.

[0007] In some embodiments, the first valve body structure includes a first switching valve and a first injection pump, with the first injection pump connected to the first switching valve. The first injection pump is connected to the first switching valve; when the first switching valve switches, it can connect any two of its valve ports, and under the extraction and injection of the first injection pump, it can provide the corresponding medium to the pipeline structure, ultimately reducing the steps involved for testing personnel and minimizing their contact with toxic reagents.

[0008] In some embodiments, the first switching valve is provided with a first intermediate port, a first valve port, a second valve port, a third valve port, a fourth valve port, a fifth valve port, a sixth valve port, a seventh valve port, an eighth valve port, a ninth valve port, a tenth valve port, and an eleventh valve port. The first intermediate port is connected to the first injection pump. The first valve port is used to discharge waste liquid. The second valve port is connected to air. The third valve port is connected to a buffer solution. The fourth, sixth, eighth, and tenth valve ports are respectively connected to the pipeline structure. The fifth valve port is connected to 4-aminoantipyrine solution. The seventh valve port is connected to potassium ferricyanide solution. The ninth valve port is connected to pure water.

[0009] In the above implementation process, the first switching valve is provided with eleven valve ports, from the first valve port to the eleventh valve port. When the first switching valve switches, any valve port can be connected to the first intermediate port, and then the medium is injected into the pipeline structure under the action of the first injection pump, thereby improving the accuracy, reliability and efficiency of sample processing.

[0010] In some embodiments, the second valve body structure includes a second switching valve and a second injection pump, the second injection pump being connected to the second switching valve. The second injection pump is connected to the second switching valve; when the second switching valve switches, it can connect any two of its ports, and under the extraction and injection of the second injection pump, it can provide the corresponding medium to the pipeline structure, ultimately reducing the steps involved for testing personnel and minimizing their contact with toxic reagents.

[0011] In some embodiments, the second switching valve is provided with a second intermediate port, a first interface, a second interface, a third interface, a fourth interface, a fifth interface, and a sixth interface. The second intermediate port is connected to the second injection pump, the first interface is used to discharge waste liquid, the second interface is connected to chloroform, the third interface is connected to air, the fourth interface is connected to anhydrous ethanol, the fifth interface is connected to the pipeline structure, and the sixth interface is connected to the photometer cuvette.

[0012] In the above implementation process, the second switching valve is provided with six ports, from the first port to the sixth port. When the second switching valve switches, any port can be connected to the second intermediate port. Then, under the action of the second injection pump, the medium is injected into the pipeline structure, which is beneficial to improve the sample processing effect, reliability and efficiency.

[0013] In some embodiments, the third valve body structure is provided with a third intermediate port, a first port, a second port, a third port and a fourth port. The third intermediate port is connected to the fourth valve body structure, the first port is used to discharge waste liquid, the second port is connected to the robotic arm structure, the third port is connected to air, and the fourth port is connected to pure water.

[0014] In the above implementation process, the third valve body structure is provided with four ports, from the first port to the fourth port. When the third switching valve is switched, any port can be connected to the third intermediate port, and the third intermediate port can be connected to the fourth valve body structure. This is beneficial to the distillation process of the distillation mechanism, with high reliability and efficiency. It is compatible with existing unmanned laboratories and also compatible with manned laboratories.

[0015] In some embodiments, the fourth valve body structure is provided with a peristaltic pump, a fourth intermediate port, a first connection port, a second connection port, a third connection port, a fourth connection port, a fifth connection port, a sixth connection port, a seventh connection port, an eighth connection port, a ninth connection port, a tenth connection port, an eleventh connection port, a twelfth connection port, a thirteenth connection port, a fourteenth connection port, a fifteenth connection port, and a sixteenth connection port. The peristaltic pump is connected to the fourth intermediate port and the third intermediate port, the first to twelfth connection ports are all connected to the distillation mechanism, the thirteenth connection port is connected to the pipeline structure, the fourteenth connection port is connected to air, and the sixteenth connection port is connected to pure water.

[0016] In the above process, the third intermediate port and the fourth intermediate port are connected by a peristaltic pump to allow the medium to flow. As the medium passes through the third valve body and the fourth valve body, the automatic distillation collection of the distillation mechanism is facilitated, and the data is processed and output. This is beneficial for monitoring environmental water quality and wastewater.

[0017] In some embodiments, the volatile phenol automatic analysis device further includes a draining mechanism, which includes a needle washing position, a solenoid valve, and a diaphragm pump. The needle washing position is connected to the fifteenth connection port, and the solenoid valve is connected to the diaphragm pump, the needle washing position, and the pipeline structure.

[0018] In the above process, the draining mechanism is connected to the fourth valve body structure. The needle washing position can clean the pipeline structure, and the waste liquid can be discharged through the switching of the solenoid valve and the operation of the diaphragm pump. This helps to improve the accuracy of test results and processing efficiency, and reduces the number of steps that test personnel need to take.

[0019] In some embodiments, the piping structure includes a first pipe, a second pipe, a third pipe, a fourth pipe, a fifth pipe, a sixth pipe, a seventh pipe, an eighth pipe, and a stirring paddle. The first pipe is connected to the solenoid valve, the second pipe is connected to the second valve body structure, the third to the sixth pipes are connected to the first valve body structure, and the seventh pipe is connected to the fourth valve body structure.

[0020] In the above implementation process, the eight pipelines from the first pipeline to the eighth pipeline, as well as the stirring paddle, are all set at the end of the robotic arm and driven synchronously by the end of the robotic arm. This can be used to contain different media, which is beneficial for water quality monitoring. It is suitable for unmanned laboratories and compatible with manned laboratories, thus improving reliability and efficiency.

[0021] In some embodiments, the distillation mechanism includes a first distillation structure, a second distillation structure, a third distillation structure, a fourth distillation structure, a fifth distillation structure, a sixth distillation structure, a first distillation structure, a second distillation structure, a third distillation structure, a fourth distillation structure, a fifth distillation structure, and a sixth distillation structure, wherein the first distillation structure is connected to the first distillation structure, the second distillation structure is connected to the second distillation structure, the third distillation structure is connected to the third distillation structure, the fourth distillation structure is connected to the fourth distillation structure, the fifth distillation structure is connected to the fifth distillation structure, and the sixth distillation structure is connected to the sixth distillation structure; Weighing devices are installed at the bottom of each of the first to sixth distillation structures. This enables automatic distillation collection, detection of volatile phenols, reduces workload and detection time, and improves work efficiency.

[0022] Other features and advantages of this application will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the above-described techniques of this application.

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the automatic volatile phenol analysis device provided in the embodiments of this application; Figure 2 A schematic diagram of the first valve body structure of the automatic volatile phenol analysis device provided in the embodiments of this application; Figure 3 A schematic diagram of the second valve body structure of the automatic volatile phenol analyzer provided in the embodiments of this application; Figure 4 This is a schematic diagram of the distillation mechanism of the automatic volatile phenol analysis device provided in the embodiments of this application; Figure 5 This is a schematic diagram of the tray position of the automatic volatile phenol analysis device provided in the embodiments of this application.

[0026] Reference numerals: 1. Actuator; 101. Robotic arm terminal; 102. First pipeline; 103. Second pipeline; 104. Third pipeline; 105. Fourth pipeline; 106. Fifth pipeline; 107. Sixth pipeline; 108. Seventh pipeline; 109. Eighth pipeline; 110. Agitator; 2. Valve body mechanism; 201. First valve body structure; 2011. First switching valve; 2012. First injection pump; 202. Second valve body structure; 2021. Second switching valve; 2022. Second injection pump; 203. Third valve body structure; 204. Fourth valve body structure; 2 5. Peristaltic pump; 3. Distillation mechanism; 301. Distillation flask tube 1; 302. Distillation flask tube 2; 303. Distillation flask tube 3; 304. Distillation flask tube 4; 305. Distillation flask tube 5; 306. Distillation flask tube 6; 307. Distillation flask tube 1; 308. Distillation flask tube 2; 309. Distillation flask tube 3; 310. Distillation flask tube 4; 311. Distillation flask tube 5; 312. Distillation flask tube 6; 313. Pinch valve; 314. Weighing device; 4. Drainage mechanism; 401. Needle washing position; 402. Two-position three-way solenoid valve; 403. Diaphragm pump; 5. Tray position A; 6. Tray position B. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] In this application, the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or a point connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0030] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0031] Example Volatile phenols are one of the important parameters for indicating water quality. Their content is an important indicator of water pollution and is listed as a major monitoring item in environmental water quality monitoring and wastewater monitoring. GB3838-2002 "Surface Water Environmental Quality Standard" and GB8978-1996 "Integrated Wastewater Discharge Standard" have imposed strict limits on their content.

[0032] The determination of volatile phenols is a fundamental item in national environmental monitoring standards for surface water pollution, domestic sewage, and integrated discharge standards for industrial wastewater. Volatile phenols pollute the environment and can harm human health. Currently, the monitoring methods adopted by various standards in my country mainly include: bromide capacity method, 4-aminoantipyridine spectrophotometry, and gas chromatography-mass spectrometry. Among these, the 4-aminoantipyridine spectrophotometry method is one of the most commonly used methods for determining volatile phenols.

[0033] The principle of HJ503-2009 "Determination of Volatile Phenols in Water by 4-Aminoantipyrine Spectrophotometric Method" can be briefly described as follows: After adding acid to the water sample, phenols and water vapor are separated by distillation. In a medium of pH=10, in the presence of potassium ferricyanide, they react with 4-aminoantipyrine to generate an orange-red antipyrine dye. After extraction with chloroform, its absorbance can be measured at a wavelength of 460 nm.

[0034] Existing technologies for the detection of volatile phenols mainly include manual detection methods, bromination volumetric methods, and gas chromatography-mass spectrometry (GC-MS). Manual detection methods are cumbersome, involving sample injection, the addition and mixing of different reagents, distillation and fraction collection, and finally, manual colorimetric concentration calculation. This results in a heavy workload for staff, long detection times, low efficiency, and high errors and accuracy. Bromination volumetric methods are a traditional method commonly used for detecting volatile phenols (such as phenol and cresol). The principle is based on the substitution reaction of phenolic compounds with bromine under acidic conditions. Excess bromine is titrated using iodometric titration to determine the phenol content. Bromination volumetric methods are more suitable for rapid screening of high-concentration phenols or for laboratories with limited resources, but other methods should be chosen for scenarios requiring high accuracy and sensitivity. GC-MS is a commonly used high-sensitivity method for detecting volatile phenols. Its advantages include high sensitivity, strong anti-interference ability, and simultaneous detection of multiple components. Its disadvantages include expensive instruments, high operating costs, complex pretreatment, and limited applicability.

[0035] In view of this, such as Figures 1-5 As shown, in a first aspect, embodiments of this application provide an automatic volatile phenol analysis device, comprising: an actuator 1, including a robotic arm terminal 101 and a pipeline structure, wherein the robotic arm terminal 101 is connected to the pipeline structure; a valve body mechanism 2, including a first valve body structure 201, a second valve body structure 202, a third valve body structure 203, and a fourth valve body structure 204, wherein the first valve body structure 201 and the second valve body structure 202 are respectively connected to the pipeline structure, and the third valve body structure 203 is respectively connected to the fourth valve body structure 204 and the pipeline structure; and a distillation mechanism 3, wherein the distillation mechanism 3 is connected to the fourth valve body structure 204.

[0036] For example, the robotic arm terminal 101 refers to a component used for the pipeline structure. The robotic arm terminal 101 is connected to the robotic arm, which can drive the pipeline structure to move along the up-down direction, the front-back direction, and the left-right direction. The pipeline structure can move between the tray position and the needle washing position 401, etc.

[0037] The first valve body structure 201, the second valve body structure 202, the third valve body structure 203, and the fourth valve body structure 204 are all multi-way valve structures, which are valves or switching devices used to change fluids. Their core function is to select and control multiple passages.

[0038] Distillation unit 3 is a laboratory atmospheric pressure glass distillation apparatus. This apparatus is a common device used in organic chemistry experiments to separate and purify liquid mixtures. Its core principle is to achieve component separation by utilizing the difference in boiling points, with a far-infrared ceramic heating bowl as the heat source.

[0039] In the above-mentioned process, the first valve body structure 201, the second valve body structure 202, the third valve body structure 203, and the fourth valve body structure 204 are respectively connected to the pipeline structure. The pipeline structure is operated by the robotic arm terminal 101. After the sample is input, the distillation mechanism 3 automatically distills and collects the sample through the cooperation of the third valve body structure 203 and the fourth valve body structure 204. Subsequently, with the cooperation of the first valve body structure 201 and the second valve body structure 202, reagents are automatically added and mixed, and automatic spectral detection is performed. Finally, the data is processed and output. The whole process can reduce the number of steps involving the test personnel, improve accuracy, reduce the contact between the test personnel and toxic reagents, improve the sample processing effect, and has high reliability and efficiency.

[0040] In some embodiments, the first valve body structure 201 includes a first switching valve 2011 and a first injection pump 2012, with the first injection pump 2012 connected to the first switching valve 2011. The first injection pump 2012 is connected to the first switching valve 2011. When the first switching valve 2011 switches, it can connect any two of its valve ports, and under the extraction and injection of the first injection pump 2012, it can provide the corresponding medium to the pipeline structure, ultimately reducing the involvement of testing personnel and minimizing their contact with toxic reagents.

[0041] like Figure 2 As shown, the first switching valve 2011 is provided with a first intermediate port, a first valve port, a second valve port, a third valve port, a fourth valve port, a fifth valve port, a sixth valve port, a seventh valve port, an eighth valve port, a ninth valve port, a tenth valve port, and an eleventh valve port. The first intermediate port is connected to the first injection pump 2012. The first valve port is used to discharge waste liquid. The second valve port is connected to air. The third valve port is connected to a buffer solution. The fourth, sixth, eighth, and tenth valve ports are respectively connected to the pipeline structure. The fifth valve port is connected to 4-aminoantipyrine solution. The seventh valve port is connected to potassium ferricyanide solution. The ninth valve port is connected to pure water.

[0042] In the above implementation process, the first switching valve 2011 is provided with eleven valve ports, from the first valve port to the eleventh valve port. When the first switching valve 2011 is switched, any valve port can be connected to the first intermediate port, and then the medium is injected into the pipeline structure under the action of the first injection pump 2012, which improves the sample processing effect, reliability and efficiency.

[0043] In some embodiments, the second valve body structure 202 includes a second switching valve 2021 and a second injection pump 2022, the second injection pump 2022 being connected to the second switching valve 2021. The second injection pump 2022 is connected to the second switching valve 2021. When the second switching valve 2021 switches, it can connect any two of its ports, and under the extraction and injection of the second injection pump 2022, it can provide the corresponding medium to the pipeline structure, ultimately reducing the involvement of testing personnel and minimizing their contact with toxic reagents.

[0044] like Figure 3 As shown, the second switching valve 2021 is provided with a second intermediate port, a first interface, a second interface, a third interface, a fourth interface, a fifth interface, and a sixth interface. The second intermediate port is connected to the second injection pump 2022. The first interface is used to discharge waste liquid. The second interface is connected to chloroform. The third interface is connected to air. The fourth interface is connected to anhydrous ethanol. The fifth interface is connected to the pipeline structure. The sixth interface is connected to the photometer cuvette.

[0045] In the above implementation process, the second switching valve 2021 is provided with six ports, from the first port to the sixth port. When the second switching valve 2021 is switched, any port can be connected to the second intermediate port. Then, under the action of the second injection pump 2022, the medium is injected into the pipeline structure, which improves the sample processing effect and has high reliability and efficiency.

[0046] In some embodiments, the third valve body structure 203 (i.e., the third switching valve) is provided with a third intermediate port, a first port, a second port, a third port and a fourth port. The third intermediate port is connected to the fourth valve body structure 204. The first port is used to discharge waste liquid. The second port is connected to the robotic arm structure. The third port is connected to air and the fourth port is connected to pure water.

[0047] In the above implementation process, the third valve body structure 203 is provided with four ports, from the first port to the fourth port. When the third switching valve is switched, any port can be connected to the third intermediate port, and the third intermediate port can be connected to the fourth valve body structure 204. This is beneficial to the distillation process of the distillation mechanism 3, with high reliability and high efficiency. It is compatible with existing unmanned laboratories and also compatible with manned laboratories.

[0048] like Figure 1As shown, the fourth valve body structure 204 (i.e., the fourth switching valve) is provided with a peristaltic pump 205, a fourth intermediate port, a first connection port, a second connection port, a third connection port, a fourth connection port, a fifth connection port, a sixth connection port, a seventh connection port, an eighth connection port, a ninth connection port, a tenth connection port, an eleventh connection port, a twelfth connection port, a thirteenth connection port, a fourteenth connection port, a fifteenth connection port, and a sixteenth connection port. The peristaltic pump 205 is connected to the fourth intermediate port and the third intermediate port, the first to twelfth connection ports are all connected to the distillation mechanism 3, the thirteenth connection port is connected to the pipeline structure, the fourteenth connection port is connected to air, and the sixteenth connection port is connected to pure water.

[0049] In the above process, the third intermediate port and the fourth intermediate port are connected by a peristaltic pump 205 for medium flow. As the medium flows through the third valve body and the fourth valve body, the automatic distillation collection of the distillation mechanism 3 is facilitated, and the data is processed and output. This is beneficial for monitoring environmental water quality and wastewater.

[0050] In some embodiments, the volatile phenol automatic analysis device further includes a draining mechanism 4, which includes a needle washing position 401, a solenoid valve, and a diaphragm pump 403. The needle washing position 401 is connected to the fifteenth connection port. The solenoid valve is connected to the diaphragm pump 403, the needle washing position 401, and the pipeline structure. The needle washing position 401 can adopt an existing structure. The solenoid valve includes a two-position three-way solenoid valve 402. The needle washing position 401 is connected to the NO position of the solenoid valve. The first pipeline 102 of the pipeline structure is connected to the NC position of the solenoid valve.

[0051] In the above process, the draining mechanism 4 is connected to the fourth valve body structure 204. The needle washing position 401 can clean the pipeline structure, and the waste liquid can be discharged through the switching of the solenoid valve and the operation of the diaphragm pump 403. This helps to improve the accuracy of test results and processing efficiency, and reduces the involvement of test personnel.

[0052] In some embodiments, the piping structure includes a first pipe 102, a second pipe 103, a third pipe 104, a fourth pipe 105, a fifth pipe 106, a sixth pipe 107, a seventh pipe 108, an eighth pipe 109, and a stirring paddle 110. The first pipe 102 is connected to the solenoid valve, the second pipe 103 is connected to the second valve body structure 202, the third pipe 104 to the sixth pipe 107 are connected to the first valve body structure 201, and the seventh pipe 108 is connected to the fourth valve body structure 204.

[0053] In the above implementation process, the eight pipelines from the first pipeline 102 to the eighth pipeline 109 and the stirring paddle 110 are all set on the robotic arm terminal 101 and synchronously driven by the robotic arm terminal 101. It can be used to contain different media, which is beneficial for water quality monitoring, adapts to unmanned laboratories, and is compatible with manned laboratories, thereby improving reliability and efficiency.

[0054] like Figure 1 and Figure 4 As shown, the distillation mechanism 3 includes a first distillation structure, a second distillation structure, a third distillation structure, a fourth distillation structure, a fifth distillation structure, a sixth distillation structure, a first distillation structure, a second distillation structure, a third distillation structure, a fourth distillation structure, a fifth distillation structure, and a sixth distillation structure. The first distillation structure is connected to the first distillation structure, the second distillation structure is connected to the second distillation structure, the third distillation structure is connected to the third distillation structure, the fourth distillation structure is connected to the fourth distillation structure, the fifth distillation structure is connected to the fifth distillation structure, and the sixth distillation structure is connected to the sixth distillation structure. The first distillation structure includes a distillation flask 1 and a distillation flask tube 1 301; the second distillation structure includes a distillation flask 2 and a distillation flask tube 2 302; the third distillation structure includes a distillation flask 3 and a distillation flask tube 3 303; the fourth distillation structure includes a distillation flask 4 and a distillation flask tube 4 304; the fifth distillation structure includes a distillation flask 5 and a distillation flask tube 5 305; the sixth distillation structure includes a distillation flask 6 and a distillation flask tube 6 306; the first distillation structure includes a distillation flask 1 and a distillation flask tube 1 307; the second distillation structure includes a distillation flask 2 and a distillation flask tube 2 308; the third distillation structure includes a distillation flask 3 and a distillation flask tube 3 309; the fourth distillation structure includes a distillation flask 4 and a distillation flask tube 4 310; the fifth distillation structure includes a distillation flask 5 and a distillation flask tube 5 311; and the sixth distillation structure includes a distillation flask 6 and a distillation flask tube 6 312. A weighing device 314 is provided at the bottom of each of the first to sixth distillation structures. It can achieve automatic distillation and collection, enabling the detection of volatile phenols, reducing workload and detection time, and improving work efficiency.

[0055] Sample collection shall be performed in accordance with the relevant provisions of HJ / T 91. The operation steps of this application method are as follows:

[001] The pre-operation steps of this method are completed by the unmanned laboratory management system: sample storage area (tray + empty cup) → liquid separation area (pretreatment and dispensing of samples to be tested) → tray position of this equipment. This process is completed by the unmanned laboratory management system (specific carriers such as robots, conveyor belts, etc.). The pretreatment process includes concentration and enrichment, interference removal, morphology transformation, and homogenization.

[0056]

[002] Before analyzing the sample to be tested, calibration is required. This application can automatically complete the calibration and calibration curve (according to the standard requirements, steps 017-057 are automatically completed, and the calibration curve is used as a reference to calculate the subsequent sample to be tested); after receiving the instruction from the unmanned laboratory management system, the first tray carries 6 sample cups to be tested at positions ①, ②, ③, ④, ⑤, and ⑥ respectively (①-⑥ are sample cups with unknown concentrations), and 6 empty sample cups at positions ⑦, ⑧, ⑨, ⑩, ⑪, and ⑫ respectively, and sends them into tray position A5; the second tray carries the empty cups at positions ①-⑧ into tray position B6; after they are in place, the sensor feeds back a signal to the unmanned laboratory management system, the transmission terminal detaches from this equipment, and then the front door is automatically closed (volatile phenols produce toxic gases during the processing and analysis process, and the sealed space in the tray area forms negative pressure and activated carbon adsorption, reducing the probability of diffusion in the laboratory);

[003] The robotic arm terminal 101 moves to the needle washing position 401 and descends one step (definition: the outlets of the first pipeline 102, the second pipeline 103, the third pipeline 104, the fourth pipeline 105, the fifth pipeline 106, the sixth pipeline 107, the seventh pipeline 108 and the eighth pipeline 109 and the stirring paddle 110 do not contact the liquid in the cup), the first switching valve 2011 switches to the third valve port to connect the buffer solution, the first injection pump 2012 draws the syringe of the first injection pump 2012, the first switching valve 2011 switches to the fourth valve port to connect the third pipeline 104, the first injection pump 2012 presses out the buffer solution in the syringe of the first injection pump 2012 to rinse the third pipeline 104, the buffer solution flows into the needle washing position 401, and the cycle is repeated three times. At this time, the third pipeline 104 is filled with buffer solution. The syringes, being in a public area, pose a risk of cross-contamination and require thorough cleaning. Therefore, the process is repeated three times to ensure that the third tubing 104 and the syringes are rinsed more thoroughly. The third step component cleans the syringes and the third tubing 104 while simultaneously filling the third tubing 104 with buffer solution.

[0057]

[004] The first switching valve 2011 switches to the ninth valve port to connect to pure water, the first injection pump 2012 draws the syringe of the first injection pump 2012, the first switching valve 2011 switches to the first valve port to connect to the waste liquid, the first injection pump 2012 presses out the pure water in the syringe of the first injection pump 2012 to the waste liquid, and repeats this cycle three times. At this time, the syringe of the first injection pump 2012 is rinsed.

[005] The first switching valve 2011 is switched to the fifth valve port to connect to the 4-aminoantipyrine solution. The first injection pump 2012 draws the syringe of the first injection pump 2012. The first switching valve 2011 is switched to the sixth valve port to connect to the fourth tubing 105. The first injection pump 2012 presses out the 4-aminoantipyrine solution in the syringe of the first injection pump 2012 to rinse the fourth tubing 105. The 4-aminoantipyrine solution flows into the needle washing position 401. This cycle is repeated three times. At this time, the fourth tubing 105 is filled with 4-aminoantipyrine solution.

[006] Execute

[004] ;

[007] The first switching valve 2011 is switched to the seventh valve port to connect to the potassium ferricyanide solution. The first injection pump 2012 draws the syringe of the first injection pump 2012. The first switching valve 2011 is switched to the eighth valve port to connect to the fifth pipeline 106. The first injection pump 2012 presses out the potassium ferricyanide solution in the syringe of the first injection pump 2012 to rinse the fifth pipeline 106. The potassium ferricyanide solution flows into the needle washing position 401. This cycle is repeated three times. At this time, the fifth pipeline 106 is filled with potassium ferricyanide solution.

[008] Execute

[004] ;

[009] The first switching valve 2011 is switched to ⑪, the first injection pump 2012 draws the standard solution into the syringe of the first injection pump 2012, the first switching valve 2011 is switched to the tenth valve port to connect to the sixth pipeline 107, the first injection pump 2012 presses out the standard solution in the syringe of the first injection pump 2012 to rinse the sixth pipeline 107, the standard solution flows into the needle washing position 401, and the cycle is repeated three times. At this time, the sixth pipeline 107 is filled with standard solution.

[010] The first switching valve 2011 is switched to ⑪ to connect to the standard solution. After the first injection pump 2012 draws the standard solution, the first switching valve 2011 is switched to the tenth valve port to connect to the sixth pipeline 107. Step 10 is to prepare for the subsequent preparation of the standard solution. This step can also be done later.

[0058]

[011] The second switching valve 2021 is switched to the sixth interface to connect to the photometer cuvette, and the second syringe pump 2022 draws out (theoretically, the cuvette contains organic reagents or air. It is assumed that there is chloroform in the cuvette before this step. The first step is to drain the air and prevent overflow). The second switching valve 2021 is switched to the first interface to connect to the waste liquid, and the second syringe pump 2022 pumps out the substance in the syringe of the second syringe pump 2022 into the waste liquid.

[012] The second switching valve 2021 switches to the second interface to connect to chloroform, the second injection pump 2022 draws into the syringe of the second injection pump 2022, the second switching valve 2021 switches to the sixth interface to connect to the photometer cuvette, the second injection pump 2022 pumps out chloroform from the syringe of the second injection pump 2022 to rinse the photometer cuvette, then the second injection pump 2022 excessively draws out the liquid in the photometer cuvette (keeping the cuvette and the tubing connecting the cuvette full of air), the second switching valve 2021 switches to the fifth interface to connect to the second tubing 103, the second injection pump 2022 pumps out chloroform through the second tubing From line 103 to needle washing position 401, repeat the cycle three times (three times is the experimental value, to ensure the cuvette is properly rinsed; in the analytical process, the cuvette is a common position, and theoretically, residue from the previous sample will interfere with the sample to be tested, so repeat three times to ensure proper rinsing). The second line 103 is filled with chloroform; the second switching valve 2021 is switched to the third interface, then the second injection pump 2022 draws in air, then the second switching valve 2021 is switched to the fifth interface, then the second injection pump 2022 discharges gas, and the second line 103 is filled with air. The photometer cuvette, the second injection pump 2022, and the second line 103 are now rinsed.

[013] The third switching valve is switched to the fourth port to connect to pure water, and the fourth switching valve is switched to ⑬ to connect to the seventh pipeline 108. The peristaltic pump 205 is turned on to draw pure water to rinse the seventh pipeline 108. The pure water flows into the needle washing position 401. Then the robotic arm terminal 101 rises (defined: rises back to the highest position - origin) and moves to the tray position B6 sample cup ① position.

[014] The outlet of the diaphragm pump 403 is connected to the waste liquid, the inlet is connected to the C port of the two-position three-way solenoid valve 402, and the drain port of the needle washing position 401 is connected to the NO port of the two-position three-way solenoid valve 402. The diaphragm pump 403 is turned on to draw excessive waste liquid from the needle washing position 401.

[015] The third switching valve remains at the fourth port, and the fourth switching valve switches to ⑮ connecting the pure water inlet of the needle washing position 401. The peristaltic pump 205 is turned on to draw pure water to clean the needle washing position 401, and the pure water flows into the needle washing position 401.

[016] Execute

[014] ; This completes the rinsing of the needle washing position 401;

[017] The robotic arm terminal 101 descends one step, and the peristaltic pump 205 is turned on to add 250mL of pure water (pure water from the sixteenth connection port of the fourth switching valve). The robotic arm terminal 101 rises and moves to the tray position B6 sample cup ② position. The peristaltic pump 205 can be used as a quantitative power source. The robotic arm descends from the sample cup ① in tray position B6 and adds 250ml of pure water as a blank sample.

[0059]

[018] The robotic arm terminal 101 descends one step, the peristaltic pump 205 is turned on to add 100mL of pure water quantitatively, then the first injection pump 2012 is turned on to add 0.25mL of standard solution, then the peristaltic pump 205 is turned on to add 149.75mL of pure water quantitatively (according to the standard requirements, the total solution volume remains unchanged at 250ml, the components are pure water and standard solution, forming standard solutions of different concentrations, which are used to calculate the calibration curve), the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ③ position;

[019] The robotic arm terminal 101 descends one step, the peristaltic pump 205 is turned on to add 100mL of pure water quantitatively, then the first injection pump 2012 is turned on to add 0.5mL of standard solution, then the peristaltic pump 205 is turned on to add 149.5mL of pure water quantitatively, and the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ④ position.

[020] The robotic arm terminal 101 descends one step, the peristaltic pump 205 is turned on to add 100mL of pure water quantitatively, then the first injection pump 2012 is turned on to add 1mL of standard solution, then the peristaltic pump 205 is turned on to add 149mL of pure water quantitatively, and the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ⑤ position.

[021] The robotic arm terminal 101 descends one step, the peristaltic pump 205 is turned on to add 100mL of pure water quantitatively, then the first injection pump 2012 is turned on to add 3mL of standard solution, then the peristaltic pump 205 is turned on to add 147mL of pure water quantitatively, and the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ⑥ position.

[022] The robotic arm terminal 101 descends one step, the peristaltic pump 205 is turned on to add 100mL of pure water quantitatively, then the first injection pump 2012 is turned on to add 5mL of standard solution, then the peristaltic pump 205 is turned on to add 145mL of pure water quantitatively, and the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ⑦ position.

[023] The robotic arm terminal 101 descends one step, the peristaltic pump 205 is turned on to add 100mL of pure water quantitatively, then the first injection pump 2012 is turned on to add 7mL of standard solution, then the peristaltic pump 205 is turned on to add 143mL of pure water quantitatively, and the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ⑧ position.

[024] The robotic arm terminal 101 descends one step, the peristaltic pump 205 is turned on to add 100mL of pure water quantitatively, then the first injection pump 2012 is turned on to add 10mL of standard solution, then the peristaltic pump 205 is turned on to add 140mL of pure water quantitatively, and the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ① position.

[025] The first switching valve 2011 is switched to ⑨, and then the first injection pump 2012 is turned on to draw pure water to rinse the syringe of the first injection pump 2012 (at this time, the standard solution remains in the syringe). Then the first switching valve 2011 is switched to ① and the first injection pump 2012 is turned on to pump out the rinsing solution to the waste liquid. This cycle is repeated three times. At this time, the syringe of the first injection pump 2012 is rinsed.

[026] The robotic arm terminal 101 descends (definition: the ends of the third pipe 104, the fourth pipe 105, the fifth pipe 106, the sixth pipe 107 and the seventh pipe 108 are above the liquid surface of the sample cup, the first pipe 102, the second pipe 103, the eighth pipe 109 and the stirring paddle 110 descend synchronously, the first pipe 102, the second pipe 103 and the eighth pipe 109 reach the bottom of the sample cup, and the stirring paddle 110 reaches a suitable depth below the liquid surface), the first switching valve 2011 is switched to the third valve port, then the first injection pump 2012 is turned on to draw 2mL of buffer solution, then the first switching valve 2011 is switched to the fourth valve port to connect the third pipe 104, then the first injection pump 2012 presses out 2mL of buffer solution, then the stirring paddle 110 is turned on to mix. The medium in the first pipeline 102 can be assumed to be air. The function of this pipeline is to transfer the liquid after the sample tube test to the waste liquid tank (excess extraction).

[0060]

[027] Execute

[025] ;

[028] The first switching valve 2011 is switched to the fifth valve port, and then the first injection pump 2012 is turned on to draw 1.5 mL of 4-aminoantipyrine solution. Then the first switching valve 2011 is switched to the sixth valve port to connect the fourth pipeline 105. Then the first injection pump 2012 is pressed out 1.5 mL of 4-aminoantipyrine solution. Then the stirrer 110 is turned on to mix.

[029] Execute

[025] ;

[030] The first switching valve 2011 is switched to the seventh valve port, and then the first injection pump 2012 is turned on to draw 1.5 mL of potassium ferricyanide solution. Then the first switching valve 2011 is switched to the eighth valve port to connect to the fifth pipeline 106. Then the first injection pump 2012 is pressed out 1.5 mL of potassium ferricyanide solution. Then the stirring paddle 110 is turned on to mix.

[031] Execute

[025] ; The syringe of the first injection pump 2012 completes rinsing;

[032] The second switching valve 2021 is switched to the second port, and then the second injection pump 2022 draws 10 mL of trichloromethane into the syringe of the second injection pump 2022. Then the second switching valve 2021 is switched to the fifth port to connect the second pipeline 103. The second injection pump 2022 presses out the trichloromethane in the syringe of the second injection pump 2022. Then the second injection pump 2022 is switched to the third port to draw out 10 mL of air. Then the second injection pump 2022 is switched to the fifth port to press out 8 mL of gas to replace the trichloromethane in the second pipeline 103. The second pipeline 103 is filled with air. Then the stirrer is turned on for 1102 min to mix.

[033] After the aqueous and organic phases are allowed to separate into layers, the second injection pump 2022 is turned on to pump out 2 mL of gas to replace the liquid flushed into the end of the second tube 103 during the stirring process. At this time, the volatile substances to be tested in the aqueous phase are transferred to the trichloromethane. The trichloromethane is at the bottom of the sample cup. The second injection pump 2022 is turned on to extract 7 mL of trichloromethane (at this time, part of the trichloromethane fills the second tube 103). Then the robotic arm rises (the end of the second tube 103 is removed from the liquid surface). Then the second injection pump 2022 continues to extract air to fill the second tube 103 and replace the trichloromethane in the second tube 103. Then the second switching valve 2021 is switched to ⑥. The second injection pump 2022 pumps out the air and trichloromethane in the syringe of the second injection pump 2022. At this time, 7 mL of trichloromethane is transferred to the photometer cuvette and the absorbance is measured at a wavelength of 460 nm. Steps 26-33 are ultimately for reading the concentration of the analyte in the sample cup ① at position B6 on the tray. For example, step 26 is for adjusting the pH value, steps 28 and 30 are for color development, step 32 is for extracting the analyte into chloroform, and step 33 is for calculating the concentration of the analyte using a photometer cuvette.

[0061]

[034] The robotic arm terminal 101 descends, the second injection pump 2022 excessively draws chloroform from the cuvette into the syringe of the second injection pump 2022, the second switching valve 2021 switches to the fifth interface, the second injection pump 2022 presses out the chloroform in the syringe of the second injection pump 2022 through the second pipeline 103 to the sample cup; then the second switching valve 2021 switches to the second interface, the second injection pump 2022 draws chloroform into the syringe of the second injection pump 2022, the second switching valve 2021 switches to the fifth interface connecting to the second pipeline 103, the second injection pump 2022 presses out Chloroform flows through the second tubing 103 to the sample cup, circulating three times until the second tubing 103 is filled with chloroform. The second switching valve 2021 is switched to the third port, and then the second injection pump 2022 draws in air. Then the second switching valve 2021 is switched to the fifth port, and then the second injection pump 2022 discharges gas, filling the second tubing 103 with air. The photometer cuvette, the second injection pump 2022, and the second tubing 103 are rinsed. Then the two-position three-way solenoid valve 402 is switched to NC and connected to the first tubing 102. Then the diaphragm pump 403 is turned on to draw excess waste liquid from the sample cup until the waste liquid is drained.

[035] The robotic arm terminal 101 rises and moves to the needle washing position 401 and then descends (the size and height of the needle washing position 401 are the same as the sample cup), execute

[015] , then turn on the stirring paddle 110, then execute

[014] , then the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ② position;

[036] The second switching valve 2021 is switched to the second interface, and then the second injection pump 2022 draws 10mL of chloroform into the syringe of the second injection pump 2022. Then the second switching valve 2021 is switched to ⑤ connecting the second pipeline 103. The second injection pump 2022 presses out the chloroform in the syringe of the second injection pump 2022 into the sample cup ② of tray position B6. Then the stirrer is turned on for 1102min to mix.

[037] Execute

[033] and

[034] ;

[038] The robotic arm terminal 101 descends from the first to the second descent, executes

[015] , then turns on the stirring paddle 110, then executes

[014] , then the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ③ position;

[039] The second switching valve 2021 is switched to ②, then the second injection pump 2022 draws 10mL of chloroform into the syringe of the second injection pump 2022, then the second switching valve 2021 is switched to ⑤ to connect the second pipeline 103, the second injection pump 2022 presses out the chloroform in the syringe of the second injection pump 2022 into the sample cup ③ in tray position B6, then the stirrer is turned on for 1102min to mix.

[040] Execute

[033] and

[034] ;

[041] The robotic arm terminal 101 descends from the first to the second position, executes

[015] , then turns on the stirring paddle 110, then executes

[014] , then the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ④ position;

[042] The second switching valve 2021 is switched to ②, and then the second injection pump 2022 draws 10mL of chloroform into the syringe of the second injection pump 2022. Then the second switching valve 2021 is switched to ⑤ to connect the second pipeline 103. The second injection pump 2022 presses out the chloroform in the syringe of the second injection pump 2022 into the sample cup ④ of tray position B6. Then the stirrer is turned on for 1102min to mix.

[043] Execute

[033] and

[034] ;

[044] The robotic arm terminal 101 descends from the first to the second position, executes

[015] , then turns on the stirring paddle 110, then executes

[014] , then the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ⑤ position;

[045] The second switching valve 2021 is switched to ②, and then the second injection pump 2022 draws 10 mL of chloroform into the syringe of the second injection pump 2022. Then the second switching valve 2021 is switched to ⑤ to connect the second pipeline 103. The second injection pump 2022 presses out the chloroform in the syringe of the second injection pump 2022 into the sample cup ⑤ of tray position B6. Then the stirrer is turned on for 1102 min to mix.

[046] Execute

[033] and

[034] ;

[047] The robotic arm terminal 101 descends from the first to the second descent, executes

[015] , then turns on the stirring paddle 110, then executes

[014] , then the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ⑥ position;

[048] The second switching valve 2021 is switched to the second interface, and then the second injection pump 2022 draws 10 mL of trichloromethane into the syringe of the second injection pump 2022. Then the second switching valve 2021 is switched to the fifth interface to connect the second pipeline 103. The second injection pump 2022 presses out the trichloromethane in the syringe of the second injection pump 2022 into the sample cup ⑥ in the tray. Then the stirrer is turned on for 1102 min to mix.

[049] Execute

[033] and

[034] ;

[050] The robotic arm terminal 101 descends from the first to the second descent, executes

[015] , then turns on the stirring paddle 110, then executes

[014] , then the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ⑦ position;

[051] The second switching valve 2021 is switched to the second interface, and then the second injection pump 2022 draws 10mL of chloroform into the syringe of the second injection pump 2022. Then the second switching valve 2021 is switched to ⑤ connecting the second pipeline 103. The second injection pump 2022 presses out the chloroform in the syringe of the second injection pump 2022 into the sample cup ⑦ in tray position B6. Then the stirrer is turned on for 1102min to mix.

[052] Execute

[033] and

[034] ;

[053] The robotic arm terminal 101 descends from the first to the second descent, executes

[015] , then turns on the stirring paddle 110, then executes

[014] , then the robotic arm terminal 101 rises and moves to the tray position B6 sample cup ⑧ position;

[054] The second switching valve 2021 is switched to the second interface, and then the second injection pump 2022 draws 10mL of chloroform into the syringe of the second injection pump 2022. Then the second switching valve 2021 is switched to the fifth interface to connect the second pipeline 103. The second injection pump 2022 presses out the chloroform in the syringe of the second injection pump 2022 into the sample cup ⑧ of tray position B6 (the second tray corresponding to tray position B6 is the substance for making the standard curve, which is composed of standard solution and pure water. The concentration of the standard solution formed in each cup is different, which is discrete concentration data. Finally, it is fitted into a straight line with a slope. The concentration data of the subsequent test substance are all obtained by comparing with this curve). Then the stirrer is turned on for 1102min to mix.

[055] Execute

[033] and

[034] ;

[056] The robotic arm terminal 101 rises and moves to the needle washing position 401 and then descends.

[015] Then the stirring paddle 110 is turned on, then

[014] is executed, and then the robotic arm terminal 101 rises.

[057] Calculate the calibration curve according to formula 10 of HJ503-2009; The 10th formula is: In the formula A represents the mass concentration of volatile phenols in the sample, expressed in mg / L. s A represents the absorbance value of the sample. b 1 is the intercept value of the blank test; a is the intercept value of the calibration curve; b is the slope of the calibration curve; V is the volume of the sample in ml; when the calculated result is less than 0.1 mg / L, it is retained to four decimal places; when the calculated result is greater than or equal to 0.1 mg / L, it is retained to three significant figures.

[0062]

[058] The front door opens automatically, tray position B6 tray two is automatically delivered, and then tray three is delivered to tray position B6. The six sample cups to be tested on tray three are located at positions ①, ②, ③, ④, ⑤, and ⑥ respectively, and the six empty sample cups are located at positions ⑦, ⑧, ⑨, ⑩, ⑪, and ⑫ respectively. Then the front door closes automatically.

[059] The third switching valve is switched to the fourth port to connect to pure water; the fourth switching valve is connected to the distillation flask (1-6) through the distillation flask tube (1-6), and the distillation flask tube is inserted into the bottom of the corresponding distillation flask; the fourth switching valve is switched to the first connection port to connect to the first pipeline 102 of the distillation flask; the peristaltic pump 205 is turned on to press out 50mL of pure water into distillation flask one, and the heating distillation is turned on to rinse the distillation flask and the pipeline from the distillation flask to the distillation bottle; then the fourth switching valve is switched to the second connection port to connect to distillation flask two, the peristaltic pump 205 is turned on to press out 50mL of pure water into distillation flask two, and the heating distillation is turned on .... Connect the third connection port to distillation flask three, turn on peristaltic pump 205 to pump 50mL of pure water into distillation flask three, and start heating distillation; then switch the fourth switching valve to the fourth connection port to distillation flask four, turn on peristaltic pump 205 to pump 50mL of pure water into distillation flask four, and start heating distillation; then switch the fourth switching valve to the fifth connection port to distillation flask five, turn on peristaltic pump 205 to pump 50mL of pure water into distillation flask five, and start heating distillation; then switch the fourth switching valve to the sixth connection port to distillation flask six, turn on peristaltic pump 205 to pump 50mL of pure water into distillation flask six, and start heating distillation;

[060] The fourth switching valve is connected to the distillation bottle (1-6) through the distillation bottle tube (1-6), and the distillation bottle tube is connected to the bottom interface of the corresponding distillation bottle; the clamp valve 313 (1-6) is normally open, the solenoid valve (1-6) is normally closed, and the weighing sensor at the bottom of the distillation bottle (1-6) stops heating when each collects 30g (the distillation apparatus communicates with the host, and the host receives the weighing sensor signal that it has reached 30g and controls the heater to stop). Then the third switching valve is switched to the third port to connect to air, and the peristaltic pump 205 is started to draw air to blow out the residual distilled water in the pipeline between the distillation bottle six and the distillation bottle six to the distillation bottle six; then the fourth switching valve is switched to the fifth connection port, the fourth connection port, the third connection port, the second connection port, and the first connection port in sequence for a period of time. During this period, the peristaltic pump 205 is kept on, so that the residual distilled water in the corresponding pipeline is blown into the corresponding distillation bottle;

[061] Keep the third switching valve at the fourth port and turn on the peristaltic pump 205. At this time, the pipeline is connected to distillation bottle one, and pure water is pumped in to 250g. Then, the fourth switching valve is switched sequentially to the eighth, ninth, tenth, eleventh, and twelfth connection ports. During this period, the peristaltic pump 205 remains on. By this point, 250mL of pure water has been added to all distillation bottles (1-6). At this time, the fourth switching valve is switched to the twelfth connection port and connected to distillation bottle six. Then, the third switching valve is switched to the third port and connected to air, which blows air into distillation bottle six to generate bubbles, making it easier for pure water to clean the inner wall of the corresponding distillation bottle. Then, the fourth switching valve is switched sequentially to the eleventh, tenth, ninth, and eighth connection ports. The first and seventh connection ports are opened, and the peristaltic pump 205 remains open during this period. Then, the third switching valve is switched to the first port, and the peristaltic pump 205 is turned on to draw liquid from the first distillation flask in reverse. Then, the fourth switching valve is switched to the eighth, ninth, tenth, eleventh, and twelfth connection ports in sequence, and the diaphragm pump 403 remains open in reverse during this period. Then, the solenoid valve (1-6) is opened, and the fourth switching valve is switched to the first, second, third, fourth, fifth, and sixth connection ports in sequence. During this period, the diaphragm pump 403 remains open in reverse to draw residual liquid from the corresponding distillation flask. Finally, the solenoid valve (1-6) is closed, and the corresponding components and pipelines of the distillation apparatus are cleaned.

[062] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑥ and descends three times (definition: the sample to be tested contains particulate impurities, which settle after standing, and descends three times at a certain distance from the bottom of the sample bottle), the third switching valve is switched to the second port, the fourth switching valve is kept at the sixth connection port, and then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation bottle 6 in the forward direction, and then the third switching valve is switched to the fourth port to connect pure water, and the peristaltic pump 205 adds 25mL of pure water into the distillation bottle 6 in the forward direction, and starts heating distillation; the robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times, the fourth switching valve is switched to the sixteenth connection port to connect pure water, the peristaltic pump 205 is turned on in the reverse direction, and the pipeline is rinsed with pure water, and then pure water enters the needle washing position 401, execute

[015] , then turn on the stirrer 110, then execute

[014] , and then the robotic arm terminal 101 rises;

[063] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑤ and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the fifth connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask 5 in the forward direction. Then the third switching valve is switched to the fourth port to connect pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask 5 in the forward direction and starts heating and distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to ⑯ to connect pure water. The peristaltic pump 205 is turned on in the reverse direction to rinse the pipeline with pure water. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[064] The robotic arm terminal 101 moves to the tray position A5 sample cup ④ and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the fourth connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask 4 in the forward direction. Then the third switching valve is switched to the fourth port to connect pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask 4 in the forward direction and starts heating distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to the sixteenth connection port to connect pure water. The peristaltic pump 205 is turned on in the reverse direction to rinse the pipeline with pure water. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[065] The robotic arm terminal 101 moves to the tray position A5 sample cup ③ and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the third connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask three in the forward direction. Then the third switching valve is switched to the fourth port to connect pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask three in the forward direction and starts heating and distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to the sixteenth connection port to connect pure water. The peristaltic pump 205 is turned on in the reverse direction to rinse the pipeline with pure water. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[066] The robotic arm terminal 101 moves to the tray position A5 sample cup ② and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the second connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask 2 in the forward direction. Then the third switching valve is switched to the fourth port to connect pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask 2 in the forward direction and starts heating distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to the sixteenth connection port to connect pure water. The peristaltic pump 205 is turned on in the reverse direction to rinse the pipeline with pure water. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[067] The robotic arm terminal 101 moves to the tray position A5 sample cup ① and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the first connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask 1 in the forward direction. Then the third switching valve is switched to the fourth port to connect pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask 1 in the forward direction and starts heating and distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to the sixteenth connection port to connect pure water. The peristaltic pump 205 reverses and uses pure water to rinse the pipeline. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[068] When the distillation flask weighs to 250g, the heating is turned off, the clamp valve 313 is closed, and the solenoid valve is opened (ultimately achieving pressure relief and cooling of the distillation flask, reducing the excess distillate flowing out of the distillation flask); the time sequence corresponds to distillation flasks six, five, four, three, two, one;

[069] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑫ and descends one step. The third switching valve switches to the second port and the fourth switching valve switches to the twelfth connection port to connect the distillation bottle tube 6 312. The peristaltic pump 205 reverses and excessively draws to the tray position A5 sample cup ⑫. Then the robotic arm terminal 101 rises.

[070] The robotic arm moves to the needle washing position 401 and descends one step. The fourth switching valve is switched to the sixteenth connection port. Then the peristaltic pump 205 reverses and draws pure water to the needle washing position 401 to clean the inner wall of the eighth pipeline 109. Then the fourth switching valve is switched to the fourteenth connection port. The peristaltic pump 205 reverses and draws air to replace the liquid in the eighth pipeline 109. Then

[014] is executed. Then the robotic arm terminal 101 rises.

[071] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑪ and descends. The third switching valve switches to the second port, and the fourth switching valve switches to ⑪ to connect to the distillation bottle tube 5 311. The peristaltic pump 205 reverses and excessively draws to the tray position A5 sample cup ⑪. Then the robotic arm terminal 101 rises.

[072] Execute

[070] ;

[073] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑩ and descends one step. The third switching valve switches to the second port, the fourth switching valve switches to the tenth connection port and connects to the distillation bottle tube 310. The peristaltic pump 205 reverses and excessively draws to the tray position A5 sample cup ⑩. Then the robotic arm terminal 101 rises.

[074] Execute

[070] ;

[075] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑨ and descends. The third switching valve switches to the second port, the fourth switching valve switches to the ninth connection port and connects to the distillation bottle tube 309. The peristaltic pump 205 reverses and excessively draws to the tray position A5 sample cup ⑨, and then the robotic arm terminal 101 rises.

[076] Execute

[070] ;

[077] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑧ and descends. The third switching valve switches to the second port, the fourth switching valve switches to the eighth connection port and connects to the distillation bottle tube 2 308. The peristaltic pump 205 reverses and excessively draws to the tray position A5 sample cup ⑧, and then the robotic arm terminal 101 rises.

[078] Execute

[070] ;

[079] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑦ and descends one step. The third switching valve switches to the second port, and the fourth switching valve switches to the seventh connection port to connect to the distillation bottle tube 307. The peristaltic pump 205 reverses and draws excess to the tray position A5 sample cup ⑦. Then the robotic arm terminal 101 descends from one step to two steps. The first switching valve 2011 switches to the third valve port. Then the first injection pump 2012 is turned on to draw 2 mL of buffer solution. Then the first switching valve 2011 switches to the fourth valve port to connect to the third pipeline 104. Then the first injection pump 2012 presses out 2 mL of buffer solution into the tray position A5 sample cup ⑦. Then the stirrer 110 is turned on to mix.

[080] Execute

[070] ; At this point, the distillate in the distillation flasks (1-6) has been transferred to the sample cups ⑦, ⑧, ⑨, ⑩, ⑪, and ⑫ corresponding to tray position A5;

[081] The robotic arm terminal 101 translates to the tray position A5 sample cup ⑦ and descends one step, continuously executing

[026] -

[034] .

[082] Execute

[056]

[083] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑧ and descends one step, executing

[026] -

[034] ;

[084] Execute

[056] ;

[085] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑨ and descends one step, executing

[026] -

[034] ;

[086] Execute

[056] ;

[087] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑩ and descends one step, executing

[026] -

[034] ;

[088] Execute

[056] ;

[089] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑪ and descends one step, executing

[026] -

[034] ;

[090] Execute

[056] ;

[091] The robotic arm terminal 101 moves to the tray position A5 sample cup ⑫ and descends one step, executing

[026] -

[034] ;

[092] Execute

[056] ;

[093] Execute

[059]

[060]

[061] (in parallel with

[081] -

[092] ) until the distillation flask, distillate flask and connecting pipeline are rinsed;

[094] The front door opens automatically, tray 1 in tray position A5 is delivered automatically, and then tray 4 is delivered to tray position A5. The 6 sample cups to be tested in tray 4 are located at positions ①, ②, ③, ④, ⑤, and ⑥ respectively, and the 6 empty sample cups are located at positions ⑦, ⑧, ⑨, ⑩, ⑪, and ⑫ respectively. Then the front door closes automatically.

[095] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑥ and descends three times (definition: the sample to be tested contains particulate impurities, which settle after standing, and descends three times at a certain distance from the bottom of the sample bottle), the third switching valve is switched to the second port, the fourth switching valve is kept at the sixth connection port, and then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation bottle 6 in the forward direction, and then the third switching valve is switched to the fourth port to connect pure water, and the peristaltic pump 205 adds 25mL of pure water into the distillation bottle 6 in the forward direction, and starts heating distillation; the robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times, the fourth switching valve is switched to the sixteenth connection port to connect pure water, the peristaltic pump 205 is turned on in the reverse direction, and the pipeline is rinsed with pure water, and then pure water enters the needle washing position 401, execute

[015] , then turn on the stirrer 110, then execute

[014] , and then the robotic arm terminal 101 rises;

[096] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑤ and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the fifth connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask 5 in the forward direction. Then the third switching valve is switched to the fourth port to connect pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask 5 in the forward direction and starts heating distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to the sixteenth connection port to connect pure water. The peristaltic pump 205 is turned on in the reverse direction to rinse the pipeline with pure water. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[097] The robotic arm terminal 101 moves to the tray position B6 sample cup ④ and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the fourth connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask 4 in the forward direction. Then the third switching valve is switched to ④ to connect to pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask 4 in the forward direction and starts heating and distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to the sixteenth connection port to connect to pure water. The peristaltic pump 205 is turned on in the reverse direction to rinse the pipeline with pure water. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[098] The robotic arm terminal 101 moves to the tray position B6 sample cup ③ and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the third connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask three in the forward direction. Then the third switching valve is switched to the fourth port to connect pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask three in the forward direction and starts heating and distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to the sixteenth connection port to connect pure water. The peristaltic pump 205 is turned on in the reverse direction to rinse the pipeline with pure water. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[099] The robotic arm terminal 101 moves to the tray position B6 sample cup ② and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the second connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask 2 in the forward direction. Then the third switching valve is switched to ④ to connect pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask 2 in the forward direction and starts heating distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to the sixteenth connection port to connect pure water. The peristaltic pump 205 is turned on in the reverse direction to rinse the pipeline with pure water. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[100] The robotic arm terminal 101 moves to the tray position B6 sample cup ① and descends three times. The third switching valve is switched to the second port, and the fourth switching valve is switched to the first connection port. Then the peristaltic pump 205 draws 250mL of the sample to be tested into the distillation flask 1 in the forward direction. Then the third switching valve is switched to the fourth port to connect pure water. The peristaltic pump 205 adds 25mL of pure water into the distillation flask 1 in the forward direction and starts heating distillation. The robotic arm terminal 101 rises and moves to the needle washing position 401 and descends two times. The fourth switching valve is switched to the sixteenth connection port to connect pure water. The peristaltic pump 205 reverses and uses pure water to rinse the pipeline. Then pure water enters the needle washing position 401 and executes

[015] . Then the stirring paddle 110 is turned on and

[014] is executed. Then the robotic arm terminal 101 rises.

[101] Execute

[068]

[102] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑫ and descends. The third switching valve switches to the second port, the fourth switching valve switches to the twelfth connection port and connects to the distillation bottle tube 6 312. The peristaltic pump 205 reverses and excessively draws to the tray position B6 sample cup ⑫, and then the robotic arm terminal 101 rises.

[103] Execute

[070]

[104] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑪ and descends. The third switching valve switches to the second port, the fourth switching valve switches to the eleventh connection port and connects to the distillation bottle tube 5 311. The peristaltic pump 205 reverses and excessively draws to the tray position B6 sample cup ⑪, and then the robotic arm terminal 101 rises.

[105] Execute

[070] ;

[106] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑩ and descends one step. The third switching valve switches to the second port, the fourth switching valve switches to the tenth connection port and connects to the distillation bottle tube 310. The peristaltic pump 205 reverses and excessively draws to the tray position B6 sample cup ⑩. Then the robotic arm terminal 101 rises.

[107] Execute

[070] ;

[108] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑨ and descends. The third switching valve switches to the second port, the fourth switching valve switches to the ninth connection port and connects to the distillation bottle tube 309. The peristaltic pump 205 reverses and excessively draws to the tray position B6 sample cup ⑨, and then the robotic arm terminal 101 rises.

[109] Execute

[070] ;

[110] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑧ and descends. The third switching valve switches to the second port, the fourth switching valve switches to the eighth connection port and connects to the distillation bottle second pipeline 103. The peristaltic pump 205 reverses and excessively draws to the tray position B6 sample cup ⑧, and then the robotic arm terminal 101 rises.

[111] Execute

[070] ;

[112] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑦ and descends one step. The third switching valve is switched to the second port, and the fourth switching valve is switched to the seventh connection port to connect the distillation bottle tube 307. The peristaltic pump 205 draws excess in the reverse direction to the tray position B6 sample cup ⑦. Then the robotic arm terminal 101 descends from one step to two steps. The first switching valve 2011 is switched to the third valve port. Then the first injection pump 2012 is turned on to draw 2 mL of buffer solution. Then the first switching valve 2011 is switched to the fourth valve port to connect the third pipeline 104. Then the first injection pump 2012 presses out 2 mL of buffer solution into the tray position B6 sample cup ⑦. Then the stirrer 110 is turned on to mix.

[113] Execute

[070] ; At this point, the distillate in the distillation flask (1-6) is transferred to the sample cups ⑦, ⑧, ⑨, ⑩, ⑪, and ⑫ corresponding to tray position B6;

[114] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑦ and descends one step, continuously executing

[026] -

[034] ;

[115] Execute

[056] ;

[116] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑧ and descends one step, executing

[026] -

[034] ;

[117] Execute

[056] ;

[118] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑨ and descends one step, executing

[026] -

[034] ;

[119] Execute

[056] ;

[120] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑩ and descends one step, executing

[026] -

[034] ;

[121] Execute

[056] ;

[122] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑪ and descends one step, executing

[026] -

[034] ;

[123] Execute

[056] ;

[124] The robotic arm terminal 101 moves to the tray position B6 sample cup ⑫ descends one step, and executes

[026] -

[034] ;

[125] Execute

[056] ;

[126] Execute

[093] ; repeat this process until all samples to be analyzed in this batch are completed;

[127] The residual liquid in various pipelines is pushed out; the equipment using this method enters a waiting state.

[0063] It should be understood that the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0064] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. An automated volatile phenol analysis device, characterized in that, include: An actuator, comprising a robotic arm terminal and a piping structure, wherein the robotic arm terminal is connected to the piping structure; The valve body mechanism includes a first valve body structure, a second valve body structure, a third valve body structure, and a fourth valve body structure. The first valve body structure and the second valve body structure are respectively connected to the pipeline structure, and the third valve body structure is respectively connected to the fourth valve body structure and the pipeline structure. A distillation mechanism, which is connected to the fourth valve body structure.

2. The automatic volatile phenol analysis device according to claim 1, characterized in that, The first valve body structure includes a first switching valve and a first injection pump, wherein the first injection pump is connected to the first switching valve.

3. The automatic volatile phenol analysis device according to claim 2, characterized in that, The first switching valve is provided with a first intermediate port, a first valve port, a second valve port, a third valve port, a fourth valve port, a fifth valve port, a sixth valve port, a seventh valve port, an eighth valve port, a ninth valve port, a tenth valve port, and an eleventh valve port. The first intermediate port is connected to the first injection pump. The first valve port is used to discharge waste liquid. The second valve port is connected to air. The third valve port is connected to a buffer solution. The fourth, sixth, eighth, and tenth valve ports are respectively connected to the pipeline structure. The fifth valve port is connected to 4-aminoantipyrine solution. The seventh valve port is connected to potassium ferricyanide solution. The ninth valve port is connected to pure water.

4. The automatic volatile phenol analysis device according to claim 1 or 3, characterized in that, The second valve body structure includes a second switching valve and a second injection pump, with the second injection pump connected to the second switching valve.

5. The automatic volatile phenol analysis device according to claim 4, characterized in that, The second switching valve is provided with a second intermediate port, a first interface, a second interface, a third interface, a fourth interface, a fifth interface, and a sixth interface. The second intermediate port is connected to the second injection pump, the first interface is used to discharge waste liquid, the second interface is connected to chloroform, the third interface is connected to air, the fourth interface is connected to anhydrous ethanol, the fifth interface is connected to the pipeline structure, and the sixth interface is connected to the photometer cuvette.

6. The automatic volatile phenol analysis device according to claim 5, characterized in that, The third valve body structure is provided with a third intermediate port, a first port, a second port, a third port and a fourth port. The third intermediate port is connected to the fourth valve body structure. The first port is used to discharge waste liquid. The second port is connected to the robotic arm structure. The third port is connected to air and the fourth port is connected to pure water.

7. The automatic volatile phenol analysis device according to claim 6, characterized in that, The fourth valve body structure is provided with a peristaltic pump, a fourth intermediate port, a first connection port, a second connection port, a third connection port, a fourth connection port, a fifth connection port, a sixth connection port, a seventh connection port, an eighth connection port, a ninth connection port, a tenth connection port, an eleventh connection port, a twelfth connection port, a thirteenth connection port, a fourteenth connection port, a fifteenth connection port, and a sixteenth connection port. The peristaltic pump is connected to the fourth intermediate port and the third intermediate port, the first to twelfth connection ports are all connected to the distillation mechanism, the thirteenth connection port is connected to the pipeline structure, the fourteenth connection port is connected to air, and the sixteenth connection port is connected to pure water.

8. The automatic volatile phenol analysis device according to claim 7, characterized in that, The volatile phenol automatic analysis device also includes a draining mechanism, which includes a needle washing position, a solenoid valve, and a diaphragm pump. The needle washing position is connected to the fifteenth connection port, and the solenoid valve is connected to the diaphragm pump, the needle washing position, and the pipeline structure.

9. The automatic volatile phenol analysis device according to claim 8, characterized in that, The pipeline structure includes a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline, a seventh pipeline, an eighth pipeline, and a stirring paddle. The first pipeline is connected to the solenoid valve, the second pipeline is connected to the second valve body structure, the third pipeline to the sixth pipeline are connected to the first valve body structure, and the seventh pipeline is connected to the fourth valve body structure.

10. The automatic volatile phenol analysis device according to claim 1 or 7, characterized in that, The distillation mechanism includes a first distillation structure, a second distillation structure, a third distillation structure, a fourth distillation structure, a fifth distillation structure, a sixth distillation structure, a first distillation structure, a second distillation structure, a third distillation structure, a fourth distillation structure, a fifth distillation structure, and a sixth distillation structure. The first distillation structure is connected to the first distillation structure, the second distillation structure is connected to the second distillation structure, the third distillation structure is connected to the third distillation structure, the fourth distillation structure is connected to the fourth distillation structure, the fifth distillation structure is connected to the fifth distillation structure, and the sixth distillation structure is connected to the sixth distillation structure. Weighing devices are provided at the bottom of each of the first to sixth distillation structures.

Images