Automatic tester for anionic surfactant and volatile phenol

Abstract

The utility model discloses an automatic determinator for anionic surfactant and volatile phenol, and relates to the technical field of water quality detection instruments, the determinator comprises a box body, a sample adding device, an extraction device, a detection device and a liquid path system which work cooperatively are arranged in the box body, and the extraction device comprises an extraction bottle assembly and a stirring mechanism which are arranged in the box body. The extraction device is arranged in the box body, so that the instrument can be used for detecting the volatile phenol and the anionic surfactant; a sample adding device and a detection device are arranged in the box body, so that the instrument is relatively high in integration level and convenient to use, the cost is saved, and the occupied area of the instrument is reduced; and a convenient detection environment is provided for experimenters.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection instruments, in particular to an anionic surfactant and volatile phenol automatic measuring instrument. Background Art

[0002] Anionic surfactants can be discharged into rivers through domestic or industrial wastewater, causing certain impacts on river water. When the concentration of anionic surfactants in water is too high, it can lead to water pollution and affect water quality. These surfactants can affect the sensory properties of water, produce persistent foam, interfere with gas exchange between water and air, reduce oxygen content in water, cause foul odors in water, and directly threaten the life safety of aquatic organisms, disrupting their physiological functions and, in severe cases, causing the death of aquatic organisms. To determine the concentration of anionic surfactants, methylene blue spectrophotometry is commonly used. Methylene blue forms ion pairs with anionic surfactants, and the concentration of anionic surfactants is determined by measuring the light absorption of these ion pairs. A standard curve is prepared and the absorbance is measured. After the standard curve is plotted, the sample absorbance value is converted into concentration.

[0003] Volatile phenols are highly toxic substances. If a certain amount is ingested by the human body, acute poisoning symptoms will occur. Long-term drinking of water contaminated with phenols can cause headaches, rashes, itching, anemia and various neurological symptoms.

[0004] Most of the existing analytical instruments on the market only have one of these detection functions, and most of them use external sampling devices, which makes the operation complicated for the staff. Multiple devices will take up a lot of laboratory space. At the same time, the external sampling device and the analytical instrument need to be connected by pipes, which makes disassembly and assembly troublesome and inconvenient for maintenance.

[0005] Therefore, an automatic measuring instrument for anionic surfactant and volatile phenol is proposed. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an anionic surfactant and volatile phenol automatic measuring instrument.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] An automatic anionic surfactant and volatile phenol analyzer comprises a box body, wherein a sample adding device, an extraction device, a detection device and a liquid path system working in coordination are arranged in the box body, and the extraction device comprises an extraction bottle assembly and a stirring mechanism both arranged in the box body.

[0009] Furthermore, in the present invention, the above-mentioned extraction bottle assembly includes an anion cup arranged in the above-mentioned box body, a volatile phenol cup is arranged on the left side of the above-mentioned anion cup, a storage bottle is arranged on the right side of the above-mentioned anion cup, and the bottom of the above-mentioned storage bottle and the bottom of the above-mentioned anion cup are connected through a pipe; the above-mentioned stirring mechanism is located below the above-mentioned anion cup.

[0010] Furthermore, in the present invention, the stirring mechanism includes a motor arranged below the anion cup, the output shaft of the motor is provided with a tray, two first magnetic blocks with opposite magnetic properties are arranged on the tray at intervals, and the two first magnetic blocks are both located directly below the anion cup; a second magnetic block is placed in the anion cup.

[0011] Furthermore, in the present invention, the sample loading device includes a sample tray and a sample loading cantilever both disposed in the housing. The sample tray is provided with a plurality of placement holes for placing sample cups. The sample loading cantilever is provided with an injection tube, a stirring paddle and a liquid extraction tube.

[0012] Furthermore, in the present invention, the above-mentioned liquid circuit system includes a ten-way valve, a sixteen-way valve, a 50ml syringe pump, multiple three-way valves and multiple peristaltic pumps; the above-mentioned 50ml syringe pump and the above-mentioned ten-way valve are connected through a pipeline.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides an anionic surfactant and volatile phenol automatic measuring instrument. By installing an extraction device in a box, the instrument can detect both volatile phenol and anionic surfactant. The instrument places both a sample adding device and a detection device inside the box, and the instrument has a high degree of integration, is easy to use, saves costs, and reduces the area occupied by the instrument. A convenient detection environment is provided for experimenters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 Rear view;

[0017] Figure 3 This is a schematic structural diagram of a sample adding device according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic structural diagram of an extraction device according to an embodiment of the present utility model;

[0019] Figure 5 for Figure 4 sectional view of .

[0020] In the figure: 101-box; 201-sample loading device; 2011-sample tray; 2012-sample loading cantilever; 2013-injection tube; 2014-stirring paddle; 2015-liquid extraction tube; 301-extraction device; 3011-anion cup; 3012-volatile phenol cup; 3013-storage bottle; 3014-motor; 3015-first magnetic block; 3016-second magnetic block; 401-detection device; 501-liquid system; 5011-ten-way valve; 5012-sixteen-way valve; 5013-50ml injection pump; 5014-three-way valve; 5015-peristaltic pump; 601-sample cup. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0022] See also Figure 1-5 , the utility model provides a technical solution:

[0023] An automatic analyzer for anionic surfactants and volatile phenols includes a housing 101, within which are located a sample loading device 201, an extraction device 301, a detection device 401, and a fluidic system 501, all working in concert. The extraction device 301 includes an extraction bottle assembly and a stirring mechanism, both located within the housing 101. The detection device 401 is mounted above the interior of the housing 101. The liquid to be tested flows through a pipeline into the detection device 401 for testing.

[0024] In this embodiment, the extraction bottle assembly includes an anion cup 3011 installed in the box body 101, a volatile phenol cup 3012 is installed on the left side of the anion cup 3011, and a storage bottle 3013 is installed on the right side of the anion cup 3011. The bottom of the storage bottle 3013 and the bottom of the anion cup 3011 are connected through a pipe; the stirring mechanism is located below the anion cup 3011.

[0025] In this embodiment, the stirring mechanism includes a motor 3014 positioned below the anion cup 3011. The output shaft of motor 3014 is mounted with a tray, on which two first magnetic blocks 3015 with opposite magnetic properties are spaced apart and positioned directly below the anion cup 3011. A second magnetic block 3016 is positioned within the anion cup 3011. When motor 3014 is in operation, the two first magnetic blocks 3015 with opposite magnetic properties rotate with the tray, and the second magnetic block 3016 within the anion cup 3011 rotates with them due to the magnetic attraction, thereby achieving uniform mixing of the liquid within the anion cup 3011.

[0026] In this embodiment, the sample loading device 201 includes a sample tray 2011 and a sample loading arm 2012, both disposed within the housing 101. The sample tray 2011 is provided with a plurality of placement holes for receiving sample cups 601. The sample loading arm 2012 is provided with an injection tube 2013, a stirring paddle 2014, and a liquid extraction tube 2015. The multiple placement holes designed in the sample tray 2011 can accommodate over forty sample cups 601. The sample loading device 201 utilizes a drive mechanism to rotate the stirring paddle 2014, liquid extraction tube 2015, and injection tube 2013, extending them into the sample cups 601 to stir, extract, and inject liquid.

[0027] Specifically, in this embodiment, the fluidic system 501 includes a ten-way valve 5011, a sixteen-way valve 5012, a 50ml syringe pump 5013, multiple three-way valves 5014, and multiple peristaltic pumps 5015. The 50ml syringe pump 5013 and the ten-way valve 5011 are connected by a pipeline. Each valve port on the ten-way valve 5011 is connected to the extraction device 301, the sample, and various reagents through the three-way valve 5014 or directly.

[0028] Detection method:

[0029] When anionic surfactants are to be tested, one of the valves in the ten-way valve 5011 is connected via a pipeline to a bottle of chloroform solution (located outside the instrument). One of the valve ports in the sixteen-way valve 5012 is connected via a pipeline to a bottle of methylene blue solution (located outside the instrument). The valve port of the ten-way valve 5011 is connected to a 50ml syringe pump 5013, and the sixteen-way valve 5012 is connected to one of the peristaltic pumps 5015. During operation, one of the peristaltic pumps 5015 operates to add the methylene blue solution to the sample cup 601, which is then stirred by the stirring paddle 2014. Subsequently, the 50ml syringe pump 5013 draws 10ml of chloroform, which is then added to the sample cup 601 and stirred by the stirring paddle 2014 to complete the extraction. This process is repeated three times to obtain 30ml of extract. The extract settles to the bottom of the sample cup 601 and is then transferred to the anion cup 3011 via the extraction tube 2015. Peristaltic pump 5015 pumps 50ml of detergent (sodium dihydrogen phosphate) into anion cup 3011. A stirring mechanism installed below drives second magnetic block 3016, placed in anion cup 3011, to rotate and stir. The resulting extract, at the bottom of anion cup 3011, is then pumped into storage bottle 3013 on the right side via a matching device. Subsequently, 5ml of chloroform is added to anion cup 3011 to strip the detergent, and the resulting 5ml of extract is again transferred to storage bottle 3013. This process is repeated twice, resulting in a total of 40ml of extract. Another 10ml of chloroform is added to anion cup 3011, stirred, and 10ml of extract is obtained, for a total of 50ml. This 50ml extract is returned to anion cup 3011, rinsed with detergent to remove color impurities, and then injected into detection device 401 by a 50ml syringe pump 5013 for detection.

[0030] When volatile phenol needs to be detected, the 50ml injection pump 5013 adds 2ml buffer, 1.5ml 4-aminoantipyrine and 1.5ml potassium ferrocyanide to the sample cup 601 in sequence, stirs it through the stirring paddle 2014, and transfers the extract to the volatile phenol cup 3012 through the corresponding peristaltic pump 5015, and then draws the volatile phenol extract into the detection device 401 through the injection pump to complete the detection.

[0031] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. An automatic anionic surfactant and volatile phenol analyzer, characterized in that: The invention comprises a box (101), wherein a sample adding device (201), an extraction device (301), a detection device (401) and a liquid path system (501) working in coordination are arranged in the box (101), and the extraction device (301) comprises an extraction bottle assembly and a stirring mechanism both of which are arranged in the box (101).

2. The automatic anionic surfactant and volatile phenol analyzer according to claim 1, characterized in that: The extraction bottle assembly comprises an anion cup (3011) arranged in the box (101), a volatile phenol cup (3012) is arranged on the left side of the anion cup (3011), a storage bottle (3013) is arranged on the right side of the anion cup (3011), and the bottom of the storage bottle (3013) and the bottom of the anion cup (3011) are connected through a pipe; the stirring mechanism is located below the anion cup (3011).

3. The automatic anionic surfactant and volatile phenol analyzer according to claim 2, characterized in that: The stirring mechanism comprises a motor (3014) arranged below the anion cup (3011); the output shaft of the motor (3014) is provided with a tray; two first magnetic blocks (3015) with opposite magnetic properties are arranged on the tray at intervals; the two first magnetic blocks (3015) are both located directly below the anion cup (3011); and a second magnetic block (3016) is placed in the anion cup (3011).

4. The automatic anionic surfactant and volatile phenol analyzer according to claim 1, characterized in that: The sample loading device (201) comprises a sample tray (2011) and a sample loading cantilever (2012), both of which are arranged in the box (101); the sample tray (2011) is provided with a plurality of placement holes for placing sample cups (601); and the sample loading cantilever (2012) is provided with an injection tube (2013), a stirring paddle (2014), and a liquid extraction tube (2015).

5. The automatic anionic surfactant and volatile phenol analyzer according to claim 1, characterized in that: The liquid circuit system (501) comprises a ten-way valve (5011), a sixteen-way valve (5012), a 50ml syringe pump (5013), a plurality of three-way valves (5014) and a plurality of peristaltic pumps (5015); the 50ml syringe pump (5013) and the ten-way valve (5011) are connected via a pipeline.

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