Reagent capsule and calibration solution configuration system for configuring a calibration solution

The reagent capsule and calibration standard solution preparation system automates the preparation of calibration standard solutions, solving the problem of inaccurate weighing caused by manual preparation, and achieving precise concentration control and cost reduction.

CN120102240BActive Publication Date: 2025-11-21CHINA NAT ENVIRONMENTAL MONITORING CENT
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Patent Information

Application Number
CN202510268717.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2025-11-21
Estimated Expiration
2045-03-07

AI Technical Summary

Technical Problem

In the existing automatic water-soluble ion monitoring system, the preparation of calibration standard solutions involves a large amount of manual work and may lead to inaccurate weighing of standard reagents, affecting calibration accuracy.

Method used

A reagent capsule and calibration standard solution preparation system is provided, including a capsule shell and a solid reagent. The capsule shell is made of a material that does not affect the ion concentration, and the solid reagent is sealed inside. The system enables precise addition of the reagent capsule and injection of solvent through an automated system to form a calibration standard solution.

Benefits of technology

This avoids calibration errors caused by inaccurate weighing of solid reagents, achieves precise control of the concentration of calibration standard solution, and reduces the cost and operational errors of manual preparation.

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Abstract

The present disclosure provides a reagent capsule and a calibration solution preparation system. The reagent capsule comprises a capsule shell and a solid reagent. The capsule shell is made of a material that does not affect the target ion concentration of the calibration solution, and has a sealed cavity inside for containing and sealing the solid reagent. The solid reagent is filled in the sealed cavity, and the weight is determined according to the nominal concentration and the nominal volume of the calibration solution to be prepared. The present disclosure can avoid calibration errors caused by inaccurate operation of the solid reagent weighing and the inability to verify.
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Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of experiments, in particular to a reagent capsule for configuring calibration standard solution and a calibration standard solution configuration system. BACKGROUND

[0002] In order to obtain the high-frequency variation rule of water-soluble ion components in atmospheric particulate matters, in recent years, the environmental protection department has started to deploy a water-soluble ion continuous automatic monitoring system to monitor the concentration of atmospheric water-soluble ions by using the automatic monitoring function with a reasonable sampling and analysis period. In order to ensure the accuracy of the monitoring data, during the measurement of ion concentration by using the water-soluble ion automatic monitoring system, a calibration standard solution containing ions with a nominal concentration needs to be used to calibrate the system periodically. Because the solution of some water-soluble ions has a very short shelf life (the corresponding ions are unstable in the aqueous solution state and can easily be converted into other substances), the calibration standard solution of the foregoing water-soluble ions needs to be configured on site. Due to the short measurement period, the workload of manually configuring the calibration standard solution on site is very large, and the calibration accuracy may be affected due to the inaccurate weighing of standard reagents caused by various reasons. SUMMARY

[0003] In order to solve the problems that may occur during the on-site configuration of the existing calibration standard solution, the embodiments of the present disclosure provide a new reagent capsule for configuring calibration standard solution and a calibration standard solution configuration system.

[0004] In a first aspect, the embodiments of the present disclosure provide a reagent capsule for configuring calibration standard solution, comprising: a capsule shell and a solid reagent.

[0005] The capsule shell is made of a material that does not affect the target ion concentration of the calibration standard solution, and has a sealed cavity inside for containing and sealing the solid reagent.

[0006] The solid reagent is filled in the sealed cavity, and the weight is determined according to the nominal concentration and the nominal capacity of the calibration standard solution to be configured.

[0007] Optionally, the capsule shell comprises a first half shell and a second half shell.

[0008] The shell mouths of the first half shell and the second half shell are matched to form a wedge-shaped sealing surface, so as to realize the sealing of the sealed cavity.

[0009] In a second aspect, the embodiments of the present disclosure provide a calibration standard solution configuration system, comprising: a capsule bin, a capsule adding mechanism and a solvent adding mechanism.

[0010] The bottom of the capsule bin is provided with a discharging port that can only realize the sequential passing of the reagent capsule as described above.

[0011] The capsule adding mechanism is arranged on the lower side of the capsule bin, comprising a base, a capsule rotating disc and a rotating driver; the capsule rotating disc is arranged on the base; the rotating driver drives the capsule rotating disc to rotate relative to the base;

[0012] The capsule rotating disc comprises a rotating disc body and a rotating channel vertically penetrating through the rotating disc body and capable of accommodating only a preset number of the reagent capsules; when the capsule rotating disc rotates to a first position state, the upper end surface of the rotating channel is opposite to the discharging port; when the capsule rotating disc rotates to a non-first position state, the rotating disc body realizes the closure of the discharging port;

[0013] The base is provided with a discharging channel which is misaligned with the discharging port and through which the reagent capsule can fall into the standard solution preparation bottle; when the capsule rotating disc rotates to a second position state which is a non-first position state, the rotating channel is in communication with the discharging channel;

[0014] The solvent injecting mechanism is used for injecting solvent into the standard solution preparation bottle.

[0015] Optionally, the capsule adding mechanism further comprises an air blowing pipe;

[0016] The air blowing pipe is arranged on the capsule rotating disc; when the capsule rotating disc rotates to the second position, the air outlet of the air blowing pipe is opposite to the rotating channel.

[0017] Optionally, the capsule adding mechanism further comprises a counter, the counter comprising a laser light source and a laser light receiver opposite to the laser light source; the laser light emitted by the laser light source passes through the area opposite to the discharging channel and irradiates the laser light receiver or the reagent capsule in the falling process.

[0018] Optionally, the calibration standard solution preparation system further comprises a preparation bottle rotating seat;

[0019] The preparation bottle rotating seat is arranged on the lower side of the capsule adding mechanism and the solvent injecting mechanism, used for carrying the standard solution preparation bottle and realizing the transfer of the standard solution preparation bottle between the lower side of the discharging channel and the lower side of the solvent injecting mechanism.

[0020] Optionally, the preparation bottle rotating seat is a rotating base;

[0021] The rotating base is provided with a preparation bottle placing position; the discharging channel and the liquid outlet pipeline of the solvent injecting mechanism are both arranged above the circular ring where the preparation bottle placing position is located.

[0022] Optionally, the liquid outlet pipeline of the solvent injecting mechanism comprises a rapid injecting pipeline and a titration injecting pipeline, and a shut-off valve is arranged on each of the rapid injecting pipeline and the titration injecting pipeline.

[0023] Optionally, the calibration standard solution preparation system further comprises a heating device for heating the standard solution preparation bottle.

[0024] The heating device is arranged on the preparation bottle transfer seat.

[0025] Optionally, the calibration standard solution preparation system further comprises an ultrasonic vibrator for accelerating the fusion speed and / or the uniform mixing speed of the reagent capsule in the standard solution preparation bottle.

[0026] By using the reagent capsule provided by the embodiment of the present disclosure, the reagent capsule and the solution of corresponding volume or weight can be directly prepared to form the calibration standard solution when preparing the standard solution, without the need for weighing the solid reagent. Because the weighing of the solid reagent during the preparation of the reagent capsule is a standardized process and can be completed under standard laboratory conditions, the weighing accuracy can be ensured, and as long as the solution amount is accurately added when preparing the calibration standard solution, the nominal concentration of the calibration standard solution can be ensured. That is, the embodiment of the present disclosure can avoid the calibration error caused by inaccurate weighing of the solid reagent and the inability to verify. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without creative labor, and

[0029] Figure 1 is a schematic diagram of a partial cross-section of a reagent capsule provided by the embodiment of the present disclosure;

[0030] Figure 2 is a schematic diagram of the structure of a calibration standard solution preparation system provided by the embodiment of the present disclosure;

[0031] Figure 3 is a partial structure top view of a calibration standard solution preparation system provided by the embodiment of the present disclosure;

[0032] Figure 4 is a top view of a preparation bottle transfer seat in the embodiment of the present disclosure;

[0033] Wherein: 100-reagent capsule, 101-capsule shell, 102-sealed cavity, 200-calibration standard solution preparation system, 210-capsule bin, 211-discharge port, 220-capsule adding mechanism, 221-base, 222-rotary disc, 222A-transfer channel, 223-rotary driver, 224-air blowing pipe, 225-laser light source, 226-laser receiver, 230-solvent adding mechanism, 231-liquid storage tank, 232-fast adding pipeline, 233-titration adding pipeline, 234-shutoff valve, 240-preparation bottle transfer seat, 250-heating device, 260-vibrator, 270-bin translation frame. DETAILED DESCRIPTION

[0034] Embodiments of the present disclosure will be described in more detail with reference to the drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein, but rather, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only, and are not intended to limit the scope of protection of the present disclosure.

[0035] The term "comprising" and variations thereof as used herein are open-ended, that is "including but not limited to". The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related terms such as "one embodiment," "an embodiment," "some embodiments," "various embodiments," "other embodiments," "another embodiment," "many embodiments," "at least one embodiment," "at least one other embodiment," "at least one further embodiment," "at least one additional embodiment," "still another embodiment," "at least one more embodiment," "at least one other aspect," "at least one further aspect," "at least one additional aspect," and the like, refer to "at least one, but not necessarily all embodiments." The terms "the and "a" are defined as meaning "one or more" of something. The terms "comprises" and "comprising" are defined as meaning "including, but not limited to." The terms "based on" and "based at least in part on" are defined as "based, at least in part, on." The term "another" is defined as meaning "at least one" of something. The terms "including" and / or "having," etc. are defined as "comprising" (i.e., "including, but not limited to").

[0036] To solve the problem of inaccurate calibration caused by excessive addition of standard reagent in existing on-site calibration standard solution preparation, the reagent capsule for facilitating accurate control of standard reagent concentration is provided in the embodiments of the present disclosure.

[0037] Figure 1 is a partial cross-sectional schematic view of the reagent capsule provided in the embodiments of the present disclosure. As shown in Figure 1 and Figure 2 The reagent capsule 100 provided in the embodiments of the present disclosure includes a capsule shell 101 and a solid reagent. The capsule shell 101 forms a sealed cavity 102 as a whole, and the solid reagent is filled in the sealed cavity 102 formed by the capsule shell 101 to achieve sealing with the external environment. In actual application, if the solid reagent includes sodium nitrite and other reagents prone to oxidation, in addition to the aforementioned solid reagent, inert gases such as nitrogen, helium or argon can also be filled in the capsule shell 101.

[0038] In the embodiments of the present disclosure, the weight of the solid reagent is determined according to the nominal concentration and the capacity of the calibration standard solution to be configured. In specific implementations, the weight of the solid reagent required can be determined according to the concentration and the capacity of the calibration standard solution to be configured, and then the solid reagent of the corresponding weight is weighed, and then the solid reagent of the foregoing weight is filled into the sealed cavity 102 of the capsule shell 101.

[0039] In addition, in the embodiments of the present disclosure, the capsule shell 101 is made of a material that does not affect the ion concentration of the target ions of the standard solution, specifically, the material of the capsule shell 101 does not react with the melted solid reagent to change the ion characteristics and ion concentration of the solid reagent, and thus does not affect the measurement of the foregoing ion concentration. In specific implementations, according to different actual needs, the capsule shell 101 can be made of cellulose, starch or bone glue. In one case, the capsule shell 101 can also be made of ice (in the case of ice, it is necessary to ensure that the reagent capsule 100 is in a reasonable low temperature state during subsequent storage, transportation and use to avoid ice melting).

[0040] In actual applications, by weighing a reasonable weight of solid reagent in advance to form a reagent capsule 100, and then when configuring a standard solution, the reagent capsule 100 and the corresponding volume or weight of solution are directly configured to form a calibration standard solution, without the need to weigh the solid reagent again, and thus the calibration error problem caused by inaccurate weighing of the solid reagent can be avoided. In specific implementations, because the weighing of the solid reagent when the reagent capsule 100 is made in advance is a standardized process and can be completed under standard laboratory conditions, the weighing accuracy can be ensured, and as long as the solution amount is accurately added when the calibration standard solution is configured, the nominal concentration of the calibration standard solution can be ensured to be accurate.

[0041] In some embodiments of the present disclosure, the capsule shell 101 includes a first half shell and a second half shell, and the first half shell and the second half shell cooperate to form a sealed structure. In the actual capsule manufacturing process, the weighed solid reagent can be added to the cavity formed by the first half shell or the second half shell, and then the first half shell and the second half shell are connected to form a sealed structure.

[0042] In some embodiments, the shell of the first half shell and the second half shell cooperates to form a wedge-shaped sealing surface, and after the first half shell is inserted into the second half shell, the wedge-shaped sealing surface formed by the cooperation of the two achieves sealing.

[0043] In some other embodiments, after the first half shell and the second half shell are connected, a part of the first half shell or the second half shell can be melted by using hot melting welding, laser welding or the like, so that the first half shell and the second half shell form an integral whole, and thus the sealed connection of the two is achieved.

[0044] In the embodiments of the present disclosure, the shape of the capsule shell 101 in the reagent capsule 100 is not limited, and in specific implementation, the reagent capsule 100 can be spherical, ellipsoidal, or spindle-shaped. In specific implementation, in order to facilitate the subsequent automatic standard solution preparation process of the reagent capsule 100, the actual capsule is preferably spherical or ellipsoidal, or other shapes with good rolling and sliding characteristics.

[0045] The foregoing scheme only provides a reagent capsule 100. In actual application, the foregoing actual capsule is also required to prepare a calibration standard solution. With the increase of the monitoring frequency of the automatic monitoring system and the large-scale deployment of the automatic monitoring equipment, the cost of manual preparation of the calibration standard solution is too high, and the manual preparation of the calibration standard solution can also intentionally affect the concentration of the standard solution.

[0046] To solve the foregoing problem, the embodiments of the present disclosure also provide a calibration standard solution preparation system using the foregoing reagent capsule 100 to prepare a calibration standard solution.

[0047] Figure 2 FIG. 1 is a structural schematic diagram of a calibration standard solution preparation system provided by the embodiments of the present disclosure. As shown in FIG. 1, the calibration standard solution preparation system 200 provided by the embodiments of the present disclosure includes a capsule bin 210, a capsule adding mechanism 220, and a solvent adding mechanism 230. Figure 2

[0048] The capsule bin 210 is a storage bin for storing the foregoing reagent capsule 100. In specific implementation, the capsule bin 210 can be provided with an upper cylindrical bin body structure and a lower conical bin body structure as shown in FIG. 3 to facilitate the actual capsule unloading. In addition, the bottom of the capsule bin 210 is provided with an unloading port 211, and the size of the unloading port 211 is determined according to the size of the reagent capsule 100, which can only pass one reagent capsule 100. In specific implementation, the cross-sectional size of the unloading port 211 is designed to be slightly larger than the size of the reagent capsule 100.

[0049] The capsule adding mechanism 220 is a mechanism for taking the reagent capsule 100 out of the capsule bin 210 and adding it to the standard solution preparation bottle. As shown in FIG. 2, the capsule adding mechanism 220 is arranged on the lower side of the capsule bin 210, and includes a base 221, a rotating disc 222, and a rotating driver 223. Figure 2

[0050] The rotating disc 222 is arranged above the base 221, and the rotating driver 223 drives the rotating disc 222 to rotate relative to the base 221. In some embodiments, the rotating driver 223 can be directly mounted on the base 221 and support the rotating disc 222 through a rotating shaft. In other embodiments, the rotating driver 223 can also be arranged above the base 221 in a suspended manner and suspend the rotating disc 222.

[0051] ​​The rotating disc 222 can include a rotating disc body and a transfer channel 222A. The transfer channel 222A is a channel for taking out the reagent capsule 100 from the capsule bin 210 by rotating the rotating disc 222. The transfer channel 222A penetrates the rotating disc body along the vertical direction and can only accommodate a preset number of reagent capsules 100 (only one reagent capsule 100 in actual application).

[0052] The aforementioned vertical direction can be a vertical direction or a direction with a certain inclination angle, and the embodiments of the present disclosure are not particularly limited. In specific implementation, the thickness of the rotating disc body is set according to the size of the actual capsule, so that the transfer channel 222A can only accommodate a preset number of reagent capsules 100. In addition, in specific implementation, one transfer channel 222A can be arranged on the rotating disc body, or multiple transfer channels 222A can be arranged. In the case of multiple transfer channels 222A, the multiple transfer channels 222A are on a concentric circular ring on one rotating disc body.

[0053] In specific implementation, when the rotating disc 222 is driven by the rotating driver 223 to rotate to the first position state, the upper end of the transfer channel 222A is opposite to the discharge port 211, so that one transfer capsule can fall into the transfer channel 222A from the discharge port 211. At this time, the reagent capsule 100 transferred to the transfer channel 222A can be supported by the upper surface of the base 221 or by the side wall of the transfer channel 222A.

[0054] When the rotating disc 222 rotates to a non-first position state, the rotating disc body blocks the discharge port 211 of the capsule bin 210, so that the discharge port 211 is closed and the actual capsule cannot fall. It can be conceived that the cooperation of the rotating disc 222 and the capsule bin 210 with the foregoing structure can realize the quantitative taking of the actual capsule.

[0055] The base 221 of the capsule adding mechanism 220 is provided with a discharge channel that is offset from the capsule bin 210. The discharge channel penetrates the base 221, and its cross-sectional size is designed to be larger than the cross-sectional size of the reagent capsule 100, so that the reagent capsule 100 can pass through. When the rotating disc 222 rotates to a second position state that is a non-first position state, the transfer channel 222A is opposite and communicates with the discharge channel, and at this time the reagent capsule 100 located in the transfer channel 222A falls through the discharge channel to the lower side of the capsule adding mechanism 220. In the case that a standard solution preparation bottle is placed below the discharge channel and the bottle opening is opposite to the discharge channel, the reagent capsule 100 can fall into the standard solution preparation bottle.

[0056] As analyzed before, by calibrating the operation of the capsule bin 210 and the capsule adding mechanism 220 in the standard solution preparation system 200, the reagent capsule 100 can be automatically added to the standard solution preparation bottle.

[0057] The solvent filling mechanism 230 is used to inject solvent into the standard solution preparation bottle, injecting a target volume of solvent to form a calibration standard solution of the target nominal concentration. In specific implementations, the solvent filling mechanism can be configured as an automated operation structure, or a combination of automated and manual operation, to inject the target volume of solvent into the standard solution preparation bottle, thereby forming a calibration standard solution of the nominal concentration.

[0058] In practical applications, especially when the capsules are non-spherical, they may become stuck in the transfer channel 222A when falling from the discharge port 211, preventing them from being transferred to the standard solution preparation bottle. Alternatively, even if transferred to the discharge channel, they may become stuck and unable to enter the standard solution preparation bottle. To solve this problem, the capsule adding mechanism 220 can also be equipped with an air blowing pipe and an air source. The air blowing pipe is located on the turntable 222, and when the turntable 222 rotates to the second position, the air outlet of the air blowing pipe 224 faces the transfer channel 222A. The gas blown from the air blowing pipe 224 can act on the reagent capsule 100, allowing the reagent capsule 100 to fall more smoothly.

[0059] In some specific implementations, due to reasons such as the actual capsules accumulating at the discharge port 211, reagent capsules 100 may not fall into the transfer channel 222A. In this case, the correct preparation of the calibration solution may not be achieved. In practical applications, it is also necessary to detect whether the reagent capsules 100 have correctly fallen into the standard solution preparation bottle. Accordingly, in this embodiment, the capsule adding mechanism 220 also includes a counter. The counter includes a laser light source 225 and a laser receiver 226 opposite to the laser light source 225. The laser emitted by the laser light source 225 passes through the area facing the discharge channel and illuminates the laser receiver 226. When a reagent capsule 100 falls from the discharge channel, the falling reagent capsule 100 will block the laser from passing through, and the laser receiver 226 cannot receive the signal. At this time, the laser receiver 226 generates a counting signal. The aforementioned counting signal indicates that the reagent capsule 100 has fallen correctly. If no counting signal is generated, it may be necessary to vibrate the capsule chamber 210 and rotate the capsule adding mechanism 220 again.

[0060] like Figure 2 As shown, in some embodiments, the base 221 has a horizontally oriented slit. The aforementioned laser source 225 and laser receiver 226 are disposed beside the slit, and the laser emitted by the laser source 225 passes through or irradiates the reagent capsule 100 during its descent from the area within the slit directly opposite the falling channel. In other embodiments, the laser source 225 and receiver in the counter may also be disposed on the underside of the chassis.

[0061] In practical applications, there can be ion concentration monitoring of different types, which requires different types of calibration standard solutions to be configured respectively, or different concentrations of calibration standard solutions to be configured for two-point or multi-point calibration. In this case, different types of reagent capsules 100 can be required. Figure 3 is a partial structure top view of a calibration standard solution configuration system provided by an embodiment of the present disclosure. As shown in Figure 3 To enable a set of calibration standard solution configuration system 200 to achieve configuration of different types of calibration standard solutions, the calibration standard solution configuration system 200 can include a plurality of capsule bins 210, and a bin translation frame 270 to achieve translation movement of the plurality of capsule bins 210. The plurality of capsule bins 210 are all fixed on the bin translation frame. The bin translation frame 270 can drive each capsule bin 210 to translate under the drive of a power device, so as to move the discharge port 211 of the corresponding capsule bin 210 to a position directly opposite the annular ring where the transfer channel 222A is located.

[0062] As previously analyzed, the capsule adding mechanism 220 in the calibration standard solution configuration system 200 adds reagent capsules 100 into the standard solution configuration bottle, and the solvent adding mechanism 230 adds dilution solvent into the standard solution configuration bottle. In practical applications, the two mechanisms perform corresponding operations at two different operation stations. In some embodiments, to achieve transfer of the standard solution configuration bottle between the two stations, the calibration standard solution configuration system 200 further includes a configuration bottle transfer seat. In specific implementations, the configuration bottle transfer seat can be a translational transfer seat or a rotational transfer seat. In specific implementations, the configuration bottle transfer seat 240 can be provided with a configuration bottle placement position for achieving accurate positioning of the standard solution configuration bottle, and the configuration bottle placement position is determined according to the transfer mode of the configuration bottle transfer seat, and the positions of the capsule adding mechanism 220 and the solution adding mechanism.

[0063] Figure 4 is a top view of a configuration bottle transfer seat in an embodiment of the present disclosure. As shown in Figure 4 In some embodiments, the configuration bottle transfer seat 230 is a rotational transfer seat, and a plurality of configuration bottle placement positions are concentrically arranged above the configuration bottle transfer seat. The discharge channel of the capsule adding mechanism 220 and the liquid outlet pipeline of the solvent adding mechanism are both arranged directly above the annular ring where the configuration bottle placement positions are located.

[0064] The foregoing only introduces the function of the solvent adding mechanism 230, and the structure of the solvent adding mechanism 230 is analyzed as follows. Figure 2 As shown in

[0065] In a specific implementation, the liquid outlet pipeline in the solvent adding mechanism 230 can include a fast adding pipeline 232 and a titration adding pipeline 233, and a shut-off valve 234 is arranged in each of the two pipelines. The fast adding pipeline 232 has a relatively large pipeline diameter, which is used to realize fast adding of the solution; the titration adding pipeline 233 has a relatively small pipeline diameter, which is used to realize constant volume in the later stage of preparation of the standard solution. In a specific implementation, the shut-off valve 234 arranged in each of the two pipelines can be a valve that has both automatic control function and manual control function. In order to realize falling of the liquid from the liquid storage tank 231, an air inlet pressure regulating device can also be arranged on the liquid storage tank 231, so as to control the air pressure in the upper part of the liquid storage tank 231 by using the air inlet pressure regulating device, thereby realizing normal adding of the liquid (especially ensuring the falling frequency of the liquid drops when the titration adding pipeline 233 is used).

[0066] In actual application, in order to realize automation of preparation of the standard solution, the solvent adding mechanism can also be provided with a liquid level sensor, so as to sense a liquid level signal by using the liquid level sensor, and then control the working state of the shut-off valve 234 in each of the two pipelines.

[0067] Because the solid reagent in the reagent capsule 100 is wrapped by the capsule shell 101, the solution is first dissolved in the capsule shell 101 and then dissolved in the solid reagent in the process of preparation of the calibration standard solution. In order to realize fast dissolution, the calibration standard solution preparation system 200 can also include a device for accelerating dissolution. In a specific implementation, the device for accelerating dissolution can include a heating device 250 and a vibrator 260. The heating device 250 and the vibrator 260 can be arranged on the preparation bottle transfer seat. In a specific implementation, the heating device 250 is an electric heating device with temperature control function, and the vibrator 260 is an ultrasonic vibrator.

[0068] In a specific implementation, in order to prevent splashing of the solution (or reagent) in the process of adding the solution, the standard solution preparation bottle can be arranged as a conical bottle with a thick upper part and a thin lower part, so that the side wall has a drainage function, and the liquid drops falling to the side wall are guided downward to avoid splashing.

[0069] The following analyzes how to prepare a calibration standard solution by using the calibration standard solution preparation system 200 provided in the embodiments of the present disclosure. The process of preparing a solution by using the calibration standard solution preparation system 200 includes the following A-F.

[0070] A: Place the cleaned and dried standard solution preparation bottle on the preparation bottle transfer seat 240, and face the lower discharging passage of the capsule adding mechanism 220.

[0071] B: Control the rotation of the rotating disc 222 in the capsule adding mechanism, so that the transfer passage 222A is transferred to the lower discharging port 211 to obtain a solvent capsule, and continue to control the rotation of the rotating disc 222, so that the reagent capsule 100 falls into the standard solution preparation bottle through the lower discharging passage, to realize adding of a target number of reagent capsules 100 into the standard solution preparation bottle.

[0072] C: Control the transfer of the standard solution configuration bottle to the lower side of the solvent filling mechanism by the transfer seat 240.

[0073] D: Control the opening of the shut-off valve 234 in the rapid filling pipeline 232, inject the solvent solution into the standard solution configuration bottle, and after the solution level reaches the target water level, control the closing of the shut-off valve 234 in the rapid filling pipeline 232.

[0074] E: Start the heating device 250 and the ultrasonic vibrator 260 for a set time, so that the solution is fully melted.

[0075] F: Enter the constant volume stage, control the opening of the shut-off valve 234 in the titration filling pipeline 233, and perform constant volume titration. After the liquid volume reaches the target volume, control the closing of the shut-off valve 234; at this point, the calibration of the standard solution configuration is completed.

[0076] The above is only a specific embodiment of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A calibration standard solution configuration system, characterized by, The capsule adding mechanism and the solvent adding mechanism are arranged on the bottom of the capsule container. The bottom of the capsule container is provided with a discharging port for sequentially passing the reagent capsules. The reagent capsule comprises a capsule shell and a solid reagent. The capsule shell is made of a material that does not affect the target ion concentration of the calibration standard solution, and has a sealed cavity for containing and sealing the solid reagent. The solid reagent is filled in the sealed cavity, and the weight is determined according to the nominal concentration and the nominal capacity of the calibration standard solution. The capsule adding mechanism is arranged on the lower side of the capsule container and comprises a base, a capsule turntable and a rotary driver. The capsule turntable comprises a turntable body and a transfer channel vertically penetrating through the turntable body and capable of containing a preset number of reagent capsules. When the capsule turntable is rotated to a first position, the upper end surface of the transfer channel faces the discharging port. When the capsule turntable is rotated to a second position, the turntable body blocks the discharging port. The base is provided with a discharging channel offset from the discharging port and capable of passing the reagent capsule to fall into the standard solution configuration bottle. The solvent adding mechanism is used for injecting solvent into the standard solution configuration bottle. The calibration standard solution configuration system further comprises a configuration bottle transfer seat. The configuration bottle transfer seat is arranged on the lower side of the capsule adding mechanism and the solvent adding mechanism, and is used for carrying the standard solution configuration bottle and transferring the standard solution configuration bottle between the lower side of the discharging channel and the lower side of the solvent adding mechanism.

2. The calibration standard solution configuration system of claim 1, wherein, The configuration bottle transfer seat is a rotary base. The rotary base is provided with a configuration bottle placement position. The discharging channel and the liquid outlet pipeline of the solvent adding mechanism are arranged above the circular ring where the configuration bottle placement position is located. The capsule adding mechanism further comprises an air blowing pipe.

4. The calibration standard solution configuration system of claim 1, wherein, The air blowing pipe is arranged above the capsule turntable.

5. The calibration standard solution configuration system of claim 1, wherein, 3. The calibration standard solution configuration system according to claim 1, wherein The capsule adding mechanism further comprises a counter, and the counter comprises a laser light source and a laser light receiver opposite to the laser light source.

6. The calibration standard solution configuration system of claim 1, wherein, The laser light emitted by the laser light source passes through the area opposite to the discharging channel and irradiates the laser light receiver or the reagent capsule falling. The liquid outlet pipeline of the solvent adding mechanism comprises a rapid adding pipeline and a titration adding pipeline, and a shut-off valve is arranged on each of the pipelines. A heating device is further arranged for heating the standard solution configuration bottle. The heating device is arranged on the configuration bottle transfer seat. An ultrasonic vibrator is further arranged for accelerating the fusion speed and / or the uniform mixing speed of the reagent capsule in the standard solution configuration bottle.

Citation Information

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