Reagent capsule for preparing calibration standard solution and calibration standard solution preparation system

Abstract

The embodiment of the invention provides a reagent capsule for preparing a calibration standard solution and a calibration standard solution preparation system. The reagent capsule comprises a capsule shell and a solid reagent, the capsule shell is made of a material which does not influence the target ion concentration of the calibration standard solution, and a sealed accommodating cavity for accommodating and sealing the solid reagent is formed in the capsule shell; the solid reagent is filled in the sealed accommodating cavity, and the weight of the solid reagent is determined according to the nominal concentration and the nominal capacity of the calibration standard solution to be configured. By adopting the scheme provided by the embodiment of the invention, the problem of calibration error caused by inaccurate weighing and incapability of verification during operation of the solid reagent can be avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of experimental technology, and in particular to a reagent capsule for configuring a calibration standard solution and a calibration standard solution configuration system. Background Art

[0002] In order to obtain the high-frequency change law of water-soluble ion components in atmospheric particulate matter, environmental protection departments have begun to deploy continuous automatic monitoring systems for water-soluble ions in recent years, using their automatic monitoring functions to monitor the concentration of atmospheric water-soluble ions with a reasonable sampling and analysis cycle. In order to ensure the accuracy of monitoring data, in the process of measuring ion concentration using the automatic monitoring system for water-soluble ions, it is necessary to periodically calibrate the system using calibration standard solutions containing nominal concentration ions. Because the solutions of some water-soluble ions have a very short shelf life (the corresponding ions are unstable in aqueous solution and can be easily converted into other substances), the calibration standard solutions of the aforementioned water-soluble ions need to be configured on-site. Due to the short measurement cycle, the workload of manually configuring the calibration standard solution on-site is very large, and the calibration accuracy may be affected by inaccurate weighing of standard reagents due to various reasons. Summary of the invention

[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 the calibration standard solution and a calibration standard solution configuration system.

[0004] In a first aspect, an embodiment of the present disclosure provides a reagent capsule for preparing a 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 that accommodates and seals the solid reagent;

[0006] The solid reagent is filled in the sealed cavity, and the weight is determined according to the nominal concentration and 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 openings of the first half shell and the second half shell cooperate to form a wedge-shaped sealing surface to achieve sealing of the sealing cavity.

[0009] In a second aspect, an embodiment of the present disclosure provides a calibration standard solution configuration system, including: a capsule compartment, a capsule adding mechanism, and a solvent adding mechanism;

[0010] The bottom of the capsule bin is provided with a feeding port that can only allow the reagent capsules to pass through sequentially as described above;

[0011] The capsule adding mechanism is arranged at the lower side of the capsule bin, and comprises a base, a capsule turntable and a rotary drive; the capsule turntable is arranged on the base; the rotary drive drives the capsule turntable to rotate relative to the base;

[0012] The capsule turntable comprises a turntable body and a transfer channel which vertically penetrates the turntable body and can only accommodate a preset number of reagent capsules; when the capsule turntable rotates to a first position, the upper end surface of the transfer channel faces the discharge port; when the capsule turntable rotates to a non-first position, the turntable body closes the discharge port;

[0013] The base is provided with a feeding channel which is offset from the feeding port and can allow the reagent capsule to pass through and fall into the standard solution configuration bottle; when the capsule turntable rotates to a second position state which is not the first position state, the transfer channel is connected with the feeding channel;

[0014] The solvent filling mechanism is used to inject solvent into the standard solution preparation bottle.

[0015] Optionally, the capsule adding mechanism further includes an air blowing tube;

[0016] The air blowing tube is arranged on the capsule turntable; when the capsule turntable rotates to the second position, the air outlet of the air blowing tube faces the transfer channel.

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

[0018] Optionally, the calibration standard solution configuration system further includes a configuration bottle transfer seat;

[0019] The configuration bottle transfer seat is arranged at the lower side of the capsule adding mechanism and the solvent adding mechanism, and is used to carry the standard solution configuration bottle and realize the transfer of the standard solution configuration bottle between the lower side of the feeding channel and the lower side of the solvent adding mechanism.

[0020] Optionally, the configuration bottle transfer seat is a rotary base;

[0021] The rotary base is provided with a configuration bottle placement position; the material discharge channel and the liquid outlet pipeline of the solvent filling mechanism are both arranged right above the circular ring where the configuration bottle placement position is located.

[0022] Optionally, the liquid outlet pipeline of the solvent adding mechanism includes a fast-filling pipeline and a titration-filling pipeline, and shut-off valves respectively arranged on the fast-filling pipeline and the titration-filling pipeline.

[0023] Optionally, the calibration standard solution configuration system further includes a heating device for heating the standard solution configuration bottle;

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

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

[0026] By using the reagent capsule provided by the embodiment of the present disclosure, when configuring the standard solution, the reagent capsule and the solution of corresponding volume or weight can be directly configured to form the calibration standard solution, without the need to weigh the solid reagent. Because the weighing of solid reagents in the early stage of making reagent capsules is a standardized process, and can be completed under standard laboratory conditions, the weighing accuracy can be guaranteed. Subsequently, as long as the amount of solution added when configuring the calibration standard solution is accurate, the nominal concentration of the calibration standard solution can be guaranteed to be accurate. In other words, the use of the embodiment of the present disclosure can avoid the problem of calibration error caused by inaccurate weighing and inability to verify the solid reagent. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, 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 following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor, including

[0029] Figure 1 is a schematic diagram of a partial cross-sectional appearance of a reagent capsule provided in an embodiment of the present disclosure;

[0030] Figure 2 is a structural schematic diagram of a calibration standard solution configuration system provided in an embodiment of the present disclosure;

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

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

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

[0034] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0035] The term "including" and its variations used in this document are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions of other terms will be given in the description below. In this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0036] In order to solve the problem of inaccurate calibration caused by excessive addition of standard reagent in the existing on-site calibration standard solution configuration, the embodiment of the present disclosure provides a reagent capsule that is convenient for accurately controlling the concentration of the standard reagent.

[0037] Figure 1 FIG. 1 is a schematic diagram of a partial cross-section of a reagent capsule provided in an embodiment of the present disclosure. Figure 1 and Figure 2 As shown, the reagent capsule 100 provided in the embodiment of the present disclosure includes a capsule shell 101 and a solid reagent. The capsule shell 101 as a whole forms a sealed cavity 102, 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 practical applications, if the solid reagent includes a reagent that is easily oxidized, such as sodium nitrite, in addition to the aforementioned solid reagent, the capsule shell 101 can also be filled with an inert gas such as nitrogen, helium or argon.

[0038] In the disclosed embodiment, the weight of the solid reagent is determined according to the nominal concentration and volume of the calibration standard solution to be configured. In a specific implementation, the weight of the solid reagent required can be determined according to the concentration and volume of the calibration standard solution to be configured, and then the corresponding weight of the solid reagent is weighed, and then the solid reagent of the aforementioned weight is filled into the sealed cavity 102 of the capsule shell 101.

[0039] In addition, the capsule shell 101 in the implementation of the present disclosure is made of a material that does not affect the target ion concentration of the standard solution. Specifically, the material of the capsule shell 101 does not react with the melted solid reagent to change the ionic properties and ion concentration of the solid reagent, and thus does not affect the measurement of the aforementioned ion concentration. In a specific implementation, depending on actual needs, the capsule shell 101 can be made of cellulose, starch or gelatin. In one case, the capsule shell 101 may also be made of ice (in the case of using 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 practical applications, the reagent capsule 100 is formed by weighing a solid reagent of a reasonable weight in advance, and then when the standard solution is configured, the reagent capsule 100 and the solution of the corresponding volume or weight can be directly configured to form a calibration standard solution, without weighing the solid reagent, and thus the calibration error caused by inaccurate weighing of the solid reagent can be avoided. In specific implementation, since the weighing of the solid reagent in the early stage of making the reagent capsule 100 is a standardized process and can be completed under standard laboratory conditions, the weighing accuracy can be guaranteed. Subsequently, as long as the amount of solution added when configuring the calibration standard solution is accurate, the nominal concentration of the calibration standard solution can be guaranteed 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 sealing 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 cooperated and connected to form a sealing structure.

[0042] In some embodiments, the shells of the first half shell and the second half shell cooperate to form a wedge-shaped sealing surface, and after the first half shell is inserted into the second half shell, sealing is achieved through the cooperating wedge-shaped sealing surfaces of the two.

[0043] In some other embodiments, after the first half shell and the second half shell are connected, hot melt welding, laser welding, etc. can be used to partially melt the first half shell or the second half shell so that the first half shell and the second half shell form a whole, thereby achieving a sealed connection between the two.

[0044] In the disclosed embodiment, the outer shape of the capsule shell 101 in the reagent capsule 100 is not limited. In the specific implementation, it can be spherical, ellipsoidal, or spindle-shaped. In the specific implementation, in order to ensure the convenient feeding of the reagent capsule 100 in the subsequent automated standard solution preparation process, the actual capsule preferably adopts a spherical or ellipsoidal shape with good rolling and sliding properties.

[0045] The above scheme only provides one kind of reagent capsule 100. In practical applications, it is also necessary to use the above practical capsule to configure the calibration standard solution. However, with the increase in the monitoring frequency of the automatic monitoring system, the automatic monitoring equipment is deployed in large quantities, and the cost of manually configuring the calibration standard solution is too high. In addition, the manual configuration of the calibration standard solution may also cause the concentration of the standard solution to be affected intentionally.

[0046] In order to solve the above problem, the embodiment of the present disclosure further provides a calibration standard solution configuration system that uses the aforementioned reagent capsule 100 to configure the calibration standard solution.

[0047] Figure 2 Schematic diagram of the structure of the calibration standard solution configuration system provided by the embodiment of the present disclosure. Figure 2 As shown, the calibration standard solution configuration system 200 provided in the embodiment of the present disclosure includes a capsule compartment 210 , a capsule adding mechanism 220 and a solvent adding mechanism 230 .

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

[0049] The capsule adding mechanism 220 is used to take out the reagent capsule 100 from the capsule compartment 210 and add it to the standard solution configuration bottle. Figure 2 As shown, the capsule adding mechanism 220 is arranged on the lower side of the capsule bin 210 , and includes a base 221 , a turntable 222 and a rotary drive 223 .

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

[0051] The turntable 222 may include a turntable body and a transfer channel 222A. The transfer channel 222A is a channel for taking out the reagent capsule 100 from the capsule compartment 210 by rotating the turntable 222. The transfer channel 222A vertically penetrates the turntable body and can only accommodate a preset number of reagent capsules 100 (only one reagent capsule 100 in actual application).

[0052] The aforementioned vertical direction may be a vertical direction or a direction with a certain inclination angle, which is not particularly limited in the embodiments of the present disclosure. In a specific implementation, the thickness of the turntable 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 a specific implementation, one transfer channel 222A may be provided on the turntable body, or multiple transfer channels 222A may be provided. In the case of providing multiple transfer channels 222A, the multiple transfer channels 222A are on a concentric ring on a turntable body.

[0053] In a specific implementation, when the rotary driver 223 drives the turntable 222 to rotate to the first position, the upper end of the transfer channel 222A faces the discharge port 211, so that a transfer capsule can fall from the discharge port 211 into the transfer channel 222A. At this time, the reagent capsule 100 transferred to the transfer channel 222A may be supported by the upper surface of the base 221 or by the side wall of the transfer channel 222A.

[0054] When the turntable 222 rotates to a non-first position, the turntable 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 imagined that the turntable 222 and the capsule bin 210 of the above structure cooperate to realize quantitative collection of actual capsules.

[0055] The base 221 of the capsule adding mechanism 220 is provided with a feeding channel that is offset from the capsule bin 210. The feeding channel runs through the base 221, and its cross-sectional dimension is designed to be larger than the cross-sectional dimension of the reagent capsule 100, so that the reagent capsule 100 can pass through. When the turntable 222 rotates to the second position state that is not the first position state, the transfer channel 222A is directly opposite to and connected with the feeding channel. At this time, the reagent capsule 100 located in the transfer channel 222A falls to the lower side of the capsule adding mechanism 220 through the feeding channel. When the standard solution configuration bottle is placed under the feeding channel and the bottle mouth is directly opposite to the feeding channel, the reagent capsule 100 can fall into the standard solution configuration bottle.

[0056] As analyzed above, by operating the capsule compartment 210 and the capsule adding mechanism 220 in the calibration standard solution configuration system 200, the reagent capsule 100 can be automatically added to the standard solution configuration bottle.

[0057] The solvent adding mechanism 230 is a mechanism for injecting into the standard solution configuration bottle, which can inject a target volume of solvent into the standard solution configuration bottle, so that a calibration standard solution of a target nominal concentration is formed in the standard solution configuration bottle. In a specific implementation, the solvent adding mechanism can be configured as an automated operation structure, or a mechanism combining automated operation with manual operation, so as to inject a target volume of solvent into the standard solution configuration bottle, thereby forming a calibration standard solution of a nominal concentration.

[0058] In practical applications, especially when the capsule is a non-spherical capsule, when it falls from the feed port 211 into the transfer channel 222A, it may get stuck in the transfer channel 222A, causing it to be unable to be subsequently transferred to the feed channel to enter the standard liquid configuration bottle. Or, even if it is transferred to the feed channel, it will get stuck in the feed channel and cannot enter the standard liquid configuration bottle. To solve this problem, the capsule adding mechanism 220 can also be provided with an air blowing pipe and an air source. The air blowing pipe is arranged on the turntable 222, and when the turntable 222 rotates to the second position, the air outlet of the air blowing pipe 224 is directly opposite to the transfer channel 222A. The gas blown out from the air blowing pipe 224 can act on the reagent capsule 100, so that the reagent capsule 100 falls more smoothly.

[0059] In some specific implementations, due to the accumulation of actual capsules at the discharge port 211 and other reasons, the reagent capsule 100 may not fall into the transfer channel 222A. In this case, the correct calibration standard solution configuration may not be achieved. In practical applications, it is also necessary to detect whether the reagent capsule 100 falls correctly into the standard solution configuration bottle. Accordingly, the capsule adding mechanism 220 in the disclosed embodiment 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 directly opposite the discharge channel and irradiates 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 forms a counting signal. The aforementioned counting signal indicates that the reagent capsule 100 falls correctly. If the counting signal is not generated, it may be necessary to vibrate the capsule bin 210 and rotate the capsule adding mechanism 220 again.

[0060] like Figure 2 As shown, in some embodiments, the base 221 is provided with a spacing gap in the horizontal direction. The aforementioned laser light source 225 and laser receiver 226 are arranged beside the spacing gap, and the laser light emitted by the laser light source 225 passes through or irradiates the reagent capsule 100 in the falling process from the area in the spacing gap facing the falling channel. In other embodiments, the laser light source 225 and the receiver in the counter can also be arranged on the lower side of the chassis.

[0061] In practical applications, different types of calibration solutions may be required for different types of ion concentration monitoring, or different concentrations of calibration solutions may be required for two-point or multi-point calibration. In this case, different types of reagent capsules 100 may be required. Figure 3 FIG. 1 is a partial structural top view of the calibration standard solution configuration system provided by the embodiment of the present disclosure. Figure 3 As shown, in order to realize the configuration of different types of calibration standard solutions by using a set of calibration standard solution configuration system 200, the calibration standard solution configuration system 200 may include a plurality of capsule bins 210, and a bin translation frame 270 for realizing the translational movement of the plurality of capsule bins 210. The aforementioned 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 the power device, and move the discharge port 211 of the corresponding capsule bin 210 to a position facing the circular ring where the transfer channel 222A is located.

[0062] As analyzed above, the capsule adding mechanism 220 in the calibration standard solution configuration system 200 adds the reagent capsule 100 to the standard solution configuration bottle, and the solvent adding mechanism 230 adds the dilution solvent to the standard solution configuration bottle. In actual applications, the aforementioned two mechanisms perform corresponding operations at two different operating stations. In some embodiments, in order to realize the transfer of the standard solution configuration bottle at the aforementioned two stations, the calibration standard solution configuration system 200 also includes a configuration bottle transfer seat. In a specific implementation, the configuration bottle transfer seat can be a translational transfer seat or a rotational transfer seat. In a specific implementation, a configuration bottle placement position for realizing accurate positioning of the standard solution configuration bottle can be set on the configuration bottle transfer seat 240, and the configuration bottle placement position is determined according to the transfer method of the configuration bottle transfer seat, the position of the capsule adding mechanism 220 and the position of the solution adding mechanism.

[0063] Figure 4 FIG. 2 is a top view of the configuration bottle transfer seat in the embodiment of the present disclosure. Figure 4 As shown, in some embodiments, the configuration bottle transfer seat 230 is a rotating transfer seat, and a plurality of concentrically arranged configuration bottle placement positions are arranged above it. The material discharge channel of the capsule adding mechanism 220 and the liquid outlet pipeline of the solvent adding mechanism are both arranged directly above the ring where the configuration bottle placement positions are located.

[0064] The above only introduces the function of the solvent adding mechanism 230. The following will analyze the structure of the solvent adding mechanism 230. Figure 2 As shown, in the embodiment of the present disclosure, the solvent adding mechanism 230 may include a liquid storage tank 231 and a liquid outlet pipeline, and the liquid outlet pipeline is arranged at the lower side of the liquid storage tank 231 to realize the addition and titration of the liquid (such as ultrapure water) in the liquid storage tank 231 into the standard liquid preparation bottle.

[0065] In a specific implementation, the liquid outlet pipeline in the solvent filling mechanism 230 may include a fast filling pipeline 232 and a titration filling pipeline 233, as well as shut-off valves 234 respectively arranged in the two pipelines. The aforementioned fast filling pipeline 232 has a larger pipeline diameter, which is used to achieve rapid filling of the solution; the pipeline diameter in the titration filling pipeline 233 is smaller, which is used for constant volume in the later configuration process of the standard solution. In a specific implementation, the shut-off valves 234 arranged in the two pipelines may be valves that take into account both automatic control functions and manual control functions. In order to achieve the falling of liquid from the liquid storage tank 231, an air intake pressure regulating device may also be arranged on the liquid storage tank 231, so as to use the air intake pressure regulating device to control the air pressure on the upper part of the liquid storage tank 231, thereby achieving normal filling of the liquid (especially when using the titration filling pipeline 233 to ensure the dripping frequency of the droplets).

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

[0067] Because the solid reagent in the reagent capsule 100 is wrapped by the capsule shell 101, the solution first dissolves the capsule shell 101 and then dissolves the solid reagent during the process of configuring the calibration standard solution. For rapid dissolution, the calibration standard solution configuration system 200 may also include a device for accelerating dissolution. In a specific implementation, the device for accelerating dissolution may include a heating device 250 and a vibrator 260. The heating device 250 and the vibrator 260 may both be arranged on the configuration bottle transfer seat. In a specific implementation, the heating device 250 is an electric heating device with a temperature control function, and the vibrator 260 is an ultrasonic vibrator.

[0068] In a specific implementation, in order to prevent the solution (or reagent) from splashing during the solution addition process, the standard solution preparation bottle can be set as a conical bottle with a thick top and a thin bottom, so that the side wall has a drainage function. During the dripping process, the solution drips onto the side wall and drains downward to avoid splashing.

[0069] The following is an analysis of how to use the calibration standard solution configuration system 200 provided in the embodiment of the present disclosure to configure the calibration standard solution. The process of configuring the solution using the calibration standard solution configuration system 200 includes the following steps AF.

[0070] A: Place the cleaned and dried standard solution configuration bottle on the configuration bottle transfer seat 240 , facing the unloading channel of the capsule adding mechanism 220 .

[0071] B: Control the rotation of the turntable 222 in the capsule adding mechanism so that the transfer channel 222A moves to the discharge port 211 to obtain the solvent capsule, and continue to control the rotation of the turntable 222 so that the reagent capsule 100 falls into the standard solution configuration bottle through the discharge channel, so as to achieve the addition of the target number of reagent capsules 100 to the standard solution configuration bottle.

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

[0073] D: Control the shut-off valve 234 in the quick filling pipeline 232 to open, inject the solvent solution into the standard solution preparation bottle, and after the solution level reaches the target water level, control the shut-off valve 234 in the quick filling pipeline 232 to close.

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

[0075] F: Entering the constant volume stage, the shutoff valve 234 in the titration filling pipeline 233 is controlled to open, and constant volume titration is performed. After the liquid volume reaches the target volume, the shutoff valve 234 is controlled to close; at this point, the calibration standard solution configuration is completed.

[0076] The above are only specific embodiments of the present disclosure, so that those skilled in the art can 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 may 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 the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reagent capsule for preparing a calibration standard solution, characterized in that: include: Capsule shells and solid reagents; 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 that accommodates and seals the solid reagent; The solid reagent is filled in the sealed cavity, and the weight is determined according to the nominal concentration and nominal capacity of the calibration standard solution to be configured.

2. The reagent capsule according to claim 1, characterized in that: The capsule shell comprises a first half shell and a second half shell; The shell openings of the first half shell and the second half shell cooperate to form a wedge-shaped sealing surface to achieve sealing of the sealing cavity.

3. A calibration standard solution configuration system, characterized in that: It includes: capsule chamber, capsule adding mechanism and solvent adding mechanism; The bottom of the capsule bin is provided with a feeding port that can only allow the reagent capsules as claimed in claim 1 or 2 to pass through sequentially; The capsule adding mechanism is arranged at the lower side of the capsule bin, and comprises a base, a capsule turntable and a rotary drive; the capsule turntable is arranged on the base; the rotary drive drives the capsule turntable to rotate relative to the base; The capsule turntable comprises a turntable body and a transfer channel which vertically penetrates the turntable body and can only accommodate a preset number of reagent capsules; When the capsule turntable rotates to the first position, the upper end surface of the transfer channel faces the discharge port; when the capsule turntable rotates to a non-first position, the turntable body closes the discharge port; The base is provided with a feeding channel which is offset from the feeding port and can allow the reagent capsule to pass through and fall into the standard solution configuration bottle; When the capsule turntable rotates to a second position state which is not the first position state, the transfer channel is communicated with the feeding channel; The solvent filling mechanism is used to inject solvent into the standard solution preparation bottle.

4. The calibration standard solution configuration system according to claim 3, characterized in that: The capsule adding mechanism also includes an air blowing tube; The air blowing tube is arranged on the capsule turntable; when the capsule turntable rotates to the second position, the air outlet of the air blowing tube faces the transfer channel.

5. The calibration standard solution configuration system according to claim 3, characterized in that: The capsule adding mechanism also includes a counter, which includes a laser light source and a laser receiver opposite to the laser light source; the laser emitted by the laser light source passes through the area facing the feeding channel and irradiates the laser receiver or the reagent capsule in the falling process.

6. The calibration standard solution configuration system according to any one of claims 3 to 5, characterized in that: Also includes a configuration bottle transfer seat; The configuration bottle transfer seat is arranged at the lower side of the capsule adding mechanism and the solvent adding mechanism, and is used to carry the standard liquid configuration bottle and realize the transfer of the standard liquid configuration bottle between the side shift just below the feeding channel and the lower side of the solvent adding mechanism.

7. The calibration standard solution configuration system according to claim 6, characterized in that: The configuration bottle transfer seat is a rotary base; The rotary base is provided with a configuration bottle placement position; the material discharge channel and the liquid outlet pipeline of the solvent filling mechanism are both arranged right above the circular ring where the configuration bottle placement position is located.

8. The calibration standard solution configuration system according to claim 6, characterized in that: The liquid outlet pipeline of the solvent filling mechanism includes a fast filling pipeline and a titration filling pipeline, and shut-off valves respectively arranged on the fast filling pipeline and the titration filling pipeline.

9. The calibration standard solution configuration system according to claim 6, characterized in that: It also includes a heating device for heating the standard solution configuration bottle; The heating device is arranged on the configuration bottle transfer seat.

10. The calibration standard solution configuration system according to claim 6, characterized in that: It also includes an ultrasonic vibrator for accelerating the fusion speed of the reagent capsules in the standard solution preparation bottle and / or the uniform mixing speed of the solution.

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