Leacheate generator of ion chromatograph

Abstract

The utility model relates to the technical field of ion chromatographs, in particular to a leacheate generator of an ion chromatograph, a main body assembly of the leacheate generator comprises a center plate, clamping plates are arranged on the surfaces of the two sides of the center plate in a matched mode, a liquid preparation channel is formed in the center plate, and two ports of the liquid preparation channel are sealed by the clamping plates respectively to form a liquid preparation cavity; a clamping plate liquid preparation structure communicated with the liquid preparation cavity is formed on at least one clamping plate, and a central plate liquid preparation structure A and a central plate liquid preparation structure B which are communicated with the liquid preparation cavity are formed on the central plate; and an electrolysis assembly is arranged in the liquid preparation cavity. The leacheate generator saves the time for manually preparing the leacheate, avoids pollution and interference caused by manual operation, improves the test automation degree and the analysis efficiency, and also ensures the accuracy of an analysis test result; a degassing pipe and a capturing column are not needed, the equipment failure rate is low, and the use cost of consumables is lower; and baseline drift can be avoided, the sensitivity is increased, the separation degree is improved, and the reproducibility and the accuracy of an analysis test are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ion chromatographs, in particular to an eluent generator for ion chromatographs. Background Art

[0002] Ion chromatographs are widely used, based on the principle of reversible exchange between dissociable ions on ion exchange resins and like-charged solute ions in the mobile phase, and separation of analytes and solutes due to differences in affinity for the exchanger. During their use, eluents provide some cations or anions. However, manual configuration of eluents can lead to significant errors, affecting the stability of ion chromatographs. While there is technical support for automated eluent configuration using eluent generators, existing eluent generators are integrated into bottles, resulting in complex structures, high processing costs, and the risk of liquid leakage.

[0003] Clearly, the current eluent configuration scheme still needs to be improved. Optimization should be conducted to increase the degree of automation and reduce errors in eluent configuration, thereby effectively ensuring higher precision when the eluent is used in ion chromatographs. Therefore, a more reasonable technical solution is needed to address the technical problems existing in the existing technology. Utility Model Content

[0004] To overcome at least one of the above-mentioned defects, the present invention proposes an eluent generator for an ion chromatograph, which realizes the configuration of the eluent by providing a closed configuration cavity to separate and combine cations and anions in the cavity.

[0005] In order to achieve the above-mentioned purpose, the eluent generator disclosed in the present invention can adopt the following technical solutions:

[0006] A eluent generator for an ion chromatograph includes a main body component, wherein the main body component includes a center plate, and both side surfaces of the center plate are provided with splints. A liquid distribution channel is provided on the center plate, and the two ends of the liquid distribution channel are respectively sealed by splints to form a liquid distribution cavity; a splint liquid distribution structure connected to the liquid distribution cavity is formed on at least one splint, and a center plate liquid distribution structure A and a center plate liquid distribution structure B connected to the liquid distribution cavity are formed on the center plate; an electrolytic component is provided in the liquid distribution cavity.

[0007] The eluent generator disclosed above uses the main body component as the main liquid preparation structure, and the liquid preparation chamber formed in the center plate is used to prepare the eluent; and the liquid is transported from the splint liquid preparation structure, the center plate liquid preparation structure A and the center plate liquid preparation structure B respectively; during the specific configuration, the configuration liquid can be introduced through the splint liquid preparation structure, and ultrapure water can be introduced through the center plate liquid preparation structure A, and the amount of configuration liquid and ultrapure water introduced can be controlled to complete the configuration, and the configured eluent is output by the center plate liquid preparation structure B.

[0008] Furthermore, the main structure, after being connected, forms a complete, sealed whole. This structural structure is not strictly limited. Here, an optimization is proposed, and one feasible option is proposed: a pressure plate is provided outside the clamping plate to connect and compress the clamping plate. The pressure plate is provided with a connecting fastener that passes through the center plate and the clamping plate to connect and tighten. In this solution, one side of the clamping plate abuts the center plate, and the other side abuts the pressure plate. The two opposing pressure plates are located at the outermost sides of the main structure, providing a connecting and tightening function. Therefore, a fastener can be provided through the main structure to tighten the two clamping plates, thereby achieving a fixed connection.

[0009] Furthermore, the two ports of the liquid distribution channel are respectively equipped with pressure plates. To perform preliminary filtration of the liquid from the pressure plates, the structure of the liquid distribution channel is adjusted. This adjustment structure is not limited to a single one. Here, we optimize and propose one feasible option: a closing structure is formed in the liquid distribution channel to install the screen assembly. The inner diameter of the passage at the closing structure is smaller than the inner diameter of the passage at the liquid distribution channel port. When adopting this solution, the passage surface of the closing structure can be constructed as a polygonal channel.

[0010] Furthermore, the mating structure of the clamping plate and the center plate can be achieved through various solutions, and the sealing structure can also take various forms. This is not a single limitation. Here, we optimize and propose one feasible option: the clamping plate is formed with a protrusion corresponding to the liquid distribution channel, the protrusion extends into the liquid distribution channel, and a sealing member is provided at the mating surface of the protrusion and the liquid distribution channel. In this solution, the sealing member can be a sealing ring. When the protrusion enters the liquid distribution channel, the sealing ring seals the gap between the mating surfaces. To improve the sealing effect, a sealing groove can be provided on the protrusion and / or the liquid distribution channel, and the sealing ring is correspondingly disposed in the sealing groove.

[0011] Furthermore, in another solution, the mating structure of the protrusion and the liquid distribution channel can adopt another form. Here, we optimize and propose one feasible option: the splint is formed with a protrusion corresponding to the liquid distribution channel. The protrusion extends into the liquid distribution channel, and the front end of the protrusion corresponds to the end of the closing structure, and a seal is achieved through the sealing structure. When using this solution, the protrusion extends a longer distance into the liquid distribution channel and achieves a seal by abutting against it, which can better ensure the sealing effect.

[0012] Furthermore, the electrolysis assembly is used to electrolyze the liquid. Its configuration can adopt a variety of schemes and is not limited to a single one. Here, we optimize and propose one feasible option: the electrolysis assembly is disposed on the raised structure and includes a positive electrode and a negative electrode, respectively, disposed on the raised structures of the two clamping plates. In this scheme, when the positive and negative electrodes are energized, they respectively electrolyze the liquid near them.

[0013] Furthermore, the splint liquid dispensing structure includes at least one liquid inlet structure. This configuration can be implemented in a variety of ways. Here, we optimize and propose one feasible option: the splint liquid dispensing structure connects to the liquid dispensing channel through the raised structure. In this embodiment, the splint liquid dispensing structure includes a liquid dispensing port for delivering liquid into the liquid dispensing chamber, and a pipeline is provided at the liquid dispensing port.

[0014] Furthermore, the liquid in the distribution channel can undergo preliminary processing before being distributed. Therefore, the structure within the distribution channel can be optimized. One feasible option proposed here is to install an exchange membrane within the distribution channel, located between the positive and negative electrodes for isolation. In this solution, the number of exchange membranes is equal to the number of the splint distribution structures, and they are arranged in a one-to-one correspondence.

[0015] Furthermore, the electrolysis assembly achieves electrolysis via a power supply structure. While the structure of the power supply structure can be implemented in a variety of ways, an optimization is presented herein, with one feasible option being proposed: a power supply structure is provided on the clamping plate and connected to the electrolysis assembly. In this embodiment, the power supply structure includes a power supply circuit, one end of which is connected to the electrode and the other end to a power source.

[0016] Furthermore, the central plate liquid distribution structure can be configured in a variety of ways, not necessarily by definition. Here, we present an optimized and feasible option: The central plate liquid distribution structure A and central plate liquid distribution structure B each extend perpendicularly to and connect to the liquid distribution channel. One of central plate liquid distribution channel A and central plate liquid distribution channel B serves as a liquid inlet, and the other as a liquid outlet. In this configuration, central plate liquid distribution structure A and central plate liquid distribution structure B are positioned opposite each other and each includes a liquid distribution port and a matching conduit.

[0017] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in this utility model include:

[0018] The eluent generator in the present invention saves the time of manual preparation of eluent, avoids pollution and interference caused by manual operation, improves the degree of test automation and analysis efficiency, and ensures the accuracy of analytical test results; it does not require a degassing tube and a capture column, has a low equipment failure rate, and has lower consumable material usage costs; it can also avoid baseline drift, increase sensitivity, improve separation, and effectively improve the reproducibility and accuracy of analytical tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 Schematic diagram of the overall structure of the eluent generator.

[0021] Figure 2 Schematic diagram of the exploded structure of the eluent generator.

[0022] In the above drawings, the meanings of the symbols are as follows:

[0023] 1. Center plate; 101. Liquid distribution channel; 2. Clamping plate; 201. Raised structure; 3. Pressing plate; 4. Clamping plate liquid distribution structure; 5. Center plate liquid distribution structure A; 6. Center plate liquid distribution structure B; 7. Electrode; 8. Exchange membrane; 9. Screen assembly. DETAILED DESCRIPTION

[0024] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0025] In view of the many deficiencies in the eluent configuration methods in the prior art, the following embodiments are optimized and overcome the defects in the prior art.

[0026] Example

[0027] This embodiment provides an eluent generator for an ion chromatograph, including a main body component, wherein the main body component includes a center plate 1, and both side surfaces of the center plate 1 are provided with a splint 2. A liquid distribution channel 101 is provided on the center plate 1, and the two ends of the liquid distribution channel 101 are respectively sealed by the splint 2 to form a liquid distribution cavity; a splint liquid distribution structure 4 connected to the liquid distribution cavity is formed on at least one splint 2, and a center plate liquid distribution structure A5 and a center plate liquid distribution structure B6 connected to the liquid distribution cavity are formed on the center plate 1; an electrolytic component is provided in the liquid distribution cavity.

[0028] The eluent generator disclosed above uses the main body component as the main liquid preparation structure, and the liquid preparation chamber formed in the center plate 1 is used to prepare the eluent; and the liquid is transported from the splint liquid preparation structure 4, the center plate liquid preparation structure A5 and the center plate liquid preparation structure B6 respectively; during the specific configuration, the configuration liquid can be introduced through the splint liquid preparation structure 4, and the ultrapure water can be introduced through the center plate liquid preparation structure A5, and the introduction amount of the configuration liquid and the ultrapure water can be controlled to complete the configuration, and the configured eluent is output by the center plate liquid preparation structure B6.

[0029] The main structure, once connected, forms a complete, sealed entity. This structural element is not strictly limited. This embodiment optimizes and employs one feasible option: a pressure plate 3 is provided outside the clamping plate 2 to connect and compress the clamping plate 2. The pressure plate 3 is provided with connecting fasteners that pass through the center plate 1 and clamping plate 2 for connection and fastening. With this solution, one side of the clamping plate 2 abuts against the center plate 1, and the other side abuts against the pressure plate 3. The two opposing pressure plates 3 are located at the outermost sides of the main structure, providing a secure connection. Therefore, fasteners can be provided through the main structure to tighten the two clamping plates 2, thereby achieving a secure connection.

[0030] The two ports of the liquid distribution channel 101 are respectively connected to the pressure plate 3. In order to perform preliminary filtering on the liquid from the pressure plate 3, the structure of the liquid distribution channel 101 is adjusted. This adjustment structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: a closing structure is formed in the liquid distribution channel 101 for installing the screen assembly 9. The inner diameter of the passage at the closing structure is smaller than the inner diameter of the passage at the port of the liquid distribution channel 101. When adopting this solution, the passage surface of the closing structure can be constructed as a polygonal channel.

[0031] The mating structure of the clamping plate 2 and the center plate 1 can be achieved through various solutions, and the sealing structure can also take various forms, which are not limited to a single solution. This embodiment optimizes and adopts one feasible option: a protruding structure 201 corresponding to the liquid distribution channel 101 is formed on the clamping plate 2, and the protruding structure 201 extends into the liquid distribution channel 101, and a sealing member is provided on the mating surface of the protruding structure 201 and the liquid distribution channel 101. When adopting this solution, the sealing member can be a sealing ring. When the protruding structure 201 enters the liquid distribution channel 101, the sealing ring seals the gap between the mating surfaces of the two. To improve the sealing effect, a sealing groove can be provided on the protruding structure 201 and / or the liquid distribution channel 101, and the sealing ring is correspondingly disposed in the sealing groove.

[0032] In another embodiment, the mating structure of the raised structure 201 and the liquid distribution channel 101 can adopt another form. This embodiment optimizes and adopts one of the feasible options: the splint 2 is formed with a raised structure 201 corresponding to the liquid distribution channel 101. The raised structure 201 extends into the liquid distribution channel 101. The front end surface of the raised structure 201 corresponds to the end surface of the closing structure and is sealed by the sealing structure. When adopting this embodiment, the raised structure 201 extends a longer distance into the liquid distribution channel 101 and achieves a seal by abutting against it, which can better ensure the sealing effect.

[0033] The electrolysis assembly is used to electrolyze liquids. Its configuration can be implemented in a variety of ways, not necessarily in a single manner. This embodiment optimizes and employs one feasible option: the electrolysis assembly is disposed on the raised structure 201 and includes a positive electrode 7 and a negative electrode 7 disposed on the raised structures 201 of the two clamping plates 2, respectively. When this configuration is employed, the positive and negative electrodes 7, when energized, electrolyze the liquid adjacent to them.

[0034] The splint liquid dispensing structure 4 includes at least one liquid inlet structure, which can be arranged in a variety of ways. This embodiment optimizes and adopts one feasible option: the splint liquid dispensing structure 4 is connected to the liquid dispensing channel 101 through the protruding structure 201. In this embodiment, the splint liquid dispensing structure 4 includes a liquid dispensing port for delivering liquid into the liquid dispensing chamber, and the liquid dispensing port is provided with a pipeline.

[0035] The liquid in the liquid distribution channel 101 can be initially processed before being distributed. Therefore, the structure within the liquid distribution channel 101 can be optimized. This embodiment adopts one feasible option: an exchange membrane 8 is provided within the liquid distribution channel 101. The exchange membrane 8 is located between the positive electrode 7 and the negative electrode 7 for isolation. When this solution is adopted, the number of exchange membranes 8 is the same as the number of the splint liquid distribution structures 4, and they are provided in a one-to-one correspondence.

[0036] The electrolysis assembly achieves electrolysis through a power supply structure. This power supply structure can be implemented in a variety of ways. This embodiment optimizes and adopts one feasible option: a power supply structure is provided on the clamping plate 2 and connected to the electrolysis assembly. In this embodiment, the power supply structure includes a power supply circuit, one end of which is connected to the electrode 7 and the other end is connected to a power source.

[0037] The arrangement of the liquid distribution structure of center plate 1 can adopt a variety of schemes, which are not limited to a single scheme. This embodiment optimizes and adopts one feasible option: center plate liquid distribution structure A5 and center plate liquid distribution structure B6 extend perpendicularly to and connect to liquid distribution channel 101. One of center plate liquid distribution channel 101A and center plate liquid distribution channel 101B serves as the liquid inlet channel, and the other serves as the liquid outlet channel. In this scheme, center plate liquid distribution structure A5 and center plate liquid distribution structure B6 are arranged opposite each other and each includes a liquid distribution port and a matching pipeline.

[0038] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods based on the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the scope of protection of this embodiment. The scope of protection of this embodiment should be based on the definition in the claims.

Claims

1. An eluent generator for an ion chromatograph, characterized in that: The invention comprises a main body component, wherein the main body component comprises a central plate (1), and both side surfaces of the central plate (1) are provided with clamping plates (2), a liquid distribution channel (101) is provided on the central plate (1), and two ends of the liquid distribution channel (101) are respectively sealed by the clamping plates (2) to form a liquid distribution cavity; a clamping plate liquid distribution structure (4) communicating with the liquid distribution cavity is formed on at least one clamping plate (2), and a central plate liquid distribution structure A (5) and a central plate liquid distribution structure B (6) communicating with the liquid distribution cavity are formed on the central plate (1); and an electrolytic component is provided in the liquid distribution cavity.

2. The eluent generator for an ion chromatograph according to claim 1, characterized in that: A pressing plate (3) is provided outside the splint (2) and is used to connect and press the splint (2); a connecting fastener is provided on the pressing plate (3) and the connecting fastener passes through the center plate (1) and the splint (2) and is used for connection and fastening.

3. The eluent generator for an ion chromatograph according to claim 1, wherein: A closing structure for installing the screen assembly (9) is formed in the liquid distribution channel (101), and the inner diameter of the closing structure is smaller than the inner diameter of the liquid distribution channel (101) port.

4. The eluent generator for an ion chromatograph according to claim 1, characterized in that: A protruding structure (201) corresponding to the liquid distribution channel (101) is formed on the clamping plate (2), the protruding structure (201) extends into the liquid distribution channel (101), and a sealing member is provided on the mating surface between the protruding structure (201) and the liquid distribution channel (101).

5. The eluent generator for an ion chromatograph according to claim 3, characterized in that: A protruding structure (201) corresponding to the liquid distribution channel (101) is formed on the clamping plate (2), and the protruding structure (201) extends into the liquid distribution channel (101). The front end surface of the protruding structure (201) corresponds to the end surface of the closing structure and is sealed by the sealing structure.

6. The eluent generator for an ion chromatograph according to claim 4 or 5, characterized in that: The electrolytic assembly is arranged on the protruding structure (201), and the electrolytic assembly comprises a positive electrode (7) and a negative electrode (7) respectively arranged on the protruding structures (201) of the two clamping plates (2).

7. The eluent generator for an ion chromatograph according to claim 4 or 5, characterized in that: The splint liquid dispensing structure (4) passes through the protruding structure (201) to communicate with the liquid dispensing channel (101).

8. The eluent generator for an ion chromatograph according to claim 6, characterized in that: An exchange membrane (8) is provided in the liquid distribution channel (101), and the exchange membrane (8) is located between the positive electrode (7) and the negative electrode (7) for isolation.

9. The eluent generator for an ion chromatograph according to claim 1, characterized in that: The clamping plate (2) is provided with a power supply structure, which is connected to the electrolytic component.

10. The eluent generator for an ion chromatograph according to claim 1, characterized in that: The central plate liquid distribution structure A (5) and the central plate liquid distribution structure B (6) respectively extend from a direction perpendicular to the liquid distribution channel (101) and communicate with the liquid distribution channel (101). One of the central plate (1) liquid distribution channel (101) A and the central plate (1) liquid distribution channel (101) B serves as a liquid inlet channel, and the other serves as a liquid outlet channel.

Images