An exhaust structure and exhaust method for an atmospheric pressure ion source for a mass spectrometer

Abstract

This invention discloses an exhaust structure and method for an atmospheric pressure ion source of a mass spectrometer, comprising an ion box, a suction needle connected to the top of the ion box, a three-way valve connected to the bottom of the ion box, a vacuum pump connected to the bottom end of the three-way valve, and a solenoid valve connected to the other end of the three-way valve. A bracket is fixedly connected to the left side of the ion box, and a processing box is fixedly connected to the side of the bracket away from the ion box. The output end of the solenoid valve is connected to the right side of the processing box. Partitions are fixedly connected to the left and right sides inside the processing box, and filter material, including activated carbon plates, is placed on top of the partitions. Nanofiber rolls are placed on top of the activated carbon plates. This invention improves the functionality of existing ion source exhaust structures, avoids the environmental impact of exhaust gases, prevents environmental pollution, and significantly improves the environmental protection effect of the mass spectrometer.

Description

Technical Field

[0001] This invention relates to the field of mass spectrometry technology, specifically to an exhaust structure and exhaust method for an atmospheric pressure ion source of a mass spectrometer. Background Technology

[0002] A mass spectrometer, also known as a mass spectrometer, is an instrument for separating and detecting different isotopes. It is a type of instrument that separates and detects the composition of substances based on the principle that charged particles can be deflected in an electromagnetic field, according to the mass differences of atoms, molecules, or molecular fragments.

[0003] The ion source process generates a large amount of waste samples and solvent vapors. In order to reduce cross-interference between waste samples and solvent vapors, the waste gas needs to be discharged after each test. However, the existing ion source exhaust structure has a relatively simple function, and the discharged waste gas can easily affect the environment, causing environmental pollution and seriously affecting the environmental protection effect of the mass spectrometer.

[0004] Therefore, it is necessary to design and modify the exhaust structure and method of the atmospheric pressure ion source of the mass spectrometer to effectively prevent the phenomenon X. Summary of the Invention

[0005] To address the problems mentioned in the background section, the present invention aims to provide an exhaust structure and method for an atmospheric pressure ion source of a mass spectrometer, which has the advantage of filtering the exhaust gas. This solves the problem that the existing ion source exhaust structure has a relatively simple function, and the exhaust gas can easily affect the environment, causing environmental pollution and seriously affecting the environmental protection effect of the mass spectrometer.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an exhaust structure and exhaust method for an atmospheric pressure ion source of a mass spectrometer, including an ion box;

[0007] A needle connected to the top of the ion chamber;

[0008] The bottom of the ion box is connected to a three-way valve, the bottom end of which is connected to a vacuum machine, and the other end of which is connected to a solenoid valve. A bracket is fixedly connected to the left side of the ion box, and a processing box is fixedly connected to the side of the bracket away from the ion box. The output end of the solenoid valve is connected to the right side of the processing box. Partitions are fixedly connected to the left and right sides inside the processing box. Filter material, including activated carbon plates, is provided on the top of the partitions. Nanofiber rolls are provided on the top of the activated carbon plates.

[0009] As a preferred embodiment of the present invention, a filter cartridge is provided inside the treatment box, and the activated carbon plate and the nanofiber roll are both located inside the filter cartridge.

[0010] As a preferred embodiment of the present invention, the filter cartridge is provided with a flow divider plate inside, and the surface of the flow divider plate is provided with a plurality of through holes, and the flow divider plate is located at the bottom of the activated carbon plate and the nanofiber roll respectively.

[0011] As a preferred embodiment of the present invention, a compressor is fixedly connected to the left side of the ion box, and the output end of the compressor is connected to the left side of the ion box.

[0012] As a preferred embodiment of the present invention, the input end of the compressor is connected to a connecting pipe, and the side of the connecting pipe away from the compressor is connected to the right side of the processing box, and the connecting pipe is located on the right side of the nano-roll material.

[0013] As a preferred embodiment of the present invention, a controller is fixedly connected to the left side of the ion box, and the input terminals of the needle extraction device, vacuum machine, solenoid valve and compressor are all electrically connected to the output terminal of the controller.

[0014] As a preferred embodiment of the present invention, airbags are fixedly connected to the bottom of the left and right sides of the inner wall of the ion box. The airbags are elastic and have recesses on their surfaces.

[0015] As a preferred embodiment of the present invention, an exhaust structure and exhaust method for an atmospheric pressure ion source of a mass spectrometer includes the following steps:

[0016] S1: The vacuum machine first extracts the gas inside the ion box through a three-way valve to create a vacuum inside the ion box;

[0017] S2: The liquid is injected into the ion box through the needle for ionization treatment;

[0018] S3: When the liquid or gas mass spectrometry detection is completed, turn on the compressor. The compressor compresses the external gas and pressurizes it to deliver it into the ion box.

[0019] S4: When the ion box changes from a negative pressure state to a positive pressure state, the solenoid valve opens, and the gas inside the ion box carries the waste gas into the treatment box through the three-way valve. The waste gas comes into contact with the activated carbon plate and the nanofiber roll in sequence and completes adsorption and filtration, thereby achieving the effect of purifying the waste gas.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. This invention can improve the functionality of the existing ion source exhaust structure, avoid the exhaust gas from easily affecting the environment, prevent environmental pollution, and greatly improve the environmental protection effect of the mass spectrometer.

[0022] 2. By setting up a filter cartridge, the present invention can store activated carbon plates and nanofiber rolls, making it convenient for users to replace activated carbon plates and nanofiber rolls. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the ion box structure of the present invention;

[0025] Figure 3 This is a schematic cross-sectional view of the processing box structure of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the filter cartridge structure of the present invention;

[0027] Figure 5 This is a partial three-dimensional structural schematic diagram of the present invention;

[0028] Figure 6 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0029] In the diagram: 1. Ion box; 2. Needle extraction; 3. Three-way valve; 4. Vacuum machine; 5. Solenoid valve; 6. Support; 7. Processing box; 8. Partition plate; 9. Activated carbon plate; 10. Nanofiber roll; 11. Filter cartridge; 12. Diverter plate; 13. Compressor; 14. Connecting pipe; 15. Controller; 16. Airbag; 17. Recess. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1 to 6 As shown, the present invention provides an exhaust structure and exhaust method for an atmospheric pressure ion source of a mass spectrometer, including an ion box 1;

[0032] The extraction needle 2 is connected to the top of the ion box 1;

[0033] A three-way valve 3 is connected to the bottom of the ion box 1. A vacuum machine 4 is connected to the bottom end of the three-way valve 3. A solenoid valve 5 is connected to the other end of the three-way valve 3. A bracket 6 is fixedly connected to the left side of the ion box 1. A processing box 7 is fixedly connected to the side of the bracket 6 away from the ion box 1. The output end of the solenoid valve 5 is connected to the right side of the processing box 7. A partition 8 is fixedly connected to both the left and right sides inside the processing box 7. A filter material is provided on the top of the partition 8. The filter material includes an activated carbon plate 9. The activated carbon plate 9 is located on the top of the partition 8. A nano-roll material 10 is provided on the top of the activated carbon plate 9.

[0034] refer to Figure 3 The processing box 7 is equipped with a filter cartridge 11, and the activated carbon plate 9 and nanofiber roll 10 are both located inside the filter cartridge 11.

[0035] As a technical optimization of the present invention, by setting the filter cartridge 11, the activated carbon plate 9 and the nanofiber roll 10 can be stored, making it convenient for users to replace the activated carbon plate 9 and the nanofiber roll 10.

[0036] refer to Figure 4 The filter cartridge 11 is provided with a flow divider 12 inside. The surface of the flow divider 12 is provided with several through holes. The flow divider 12 is located at the bottom of the activated carbon plate 9 and the nano-roll material 10 respectively.

[0037] As a technical optimization of the present invention, by setting the diversion plate 12, the airflow can be evenly distributed, thereby improving the uniformity of contact between the activated carbon plate 9 and the exhaust gas.

[0038] refer to Figure 6 A compressor 13 is fixedly connected to the left side of the ion box 1, and the output end of the compressor 13 is connected to the left side of the ion box 1.

[0039] As a technical optimization of the present invention, by setting up compressor 13, the internal pressure level of ion box 1 can be increased, and the airflow discharge efficiency can be accelerated.

[0040] refer to Figure 6 The input end of the compressor 13 is connected to a connecting pipe 14. The side of the connecting pipe 14 away from the compressor 13 is connected to the right side of the processing box 7. The connecting pipe 14 is located on the right side of the nano-roll material 10.

[0041] As a technical optimization of the present invention, by setting the connecting pipe 14, the compressor 13 can be connected to the processing box 7, which can filter the incoming airflow and prevent impurities from affecting the operation of the ion box 1.

[0042] refer to Figure 6 A controller 15 is fixedly connected to the left side of the ion box 1. The input terminals of the needle extraction device 2, vacuum machine 4, solenoid valve 5 and compressor 13 are all electrically connected to the output terminal of the controller 15.

[0043] As a technical optimization of the present invention, by setting the controller 15, the automation level of the ion box 1 can be improved, enabling multiple electric devices to work together.

[0044] refer to Figure 2 Airbags 16 are fixedly connected to the bottom of the left and right sides of the inner wall of the ion box 1. The airbags 16 are elastic and have recesses 17 on their surface.

[0045] As a technical optimization of the present invention, by setting the airbag 16 and the recess 17, the internal space of the ion box 1 can be reduced and the positive and negative pressure regulation efficiency can be improved.

[0046] refer to Figure 1 An exhaust structure and exhaust method for an atmospheric pressure ion source of a mass spectrometer, comprising the following steps:

[0047] S1: The vacuum machine 4 first extracts the gas inside the ion box 1 through the three-way valve 3, so that the inside of the ion box 1 is in a vacuum state.

[0048] S2: The needle 2 injects liquid into the ion box 1 for ionization treatment;

[0049] S3: When the liquid or gas mass spectrometry detection is completed, turn on the compressor 13. The compressor 13 compresses the external gas and pressurizes it to deliver it into the ion box 1.

[0050] S4: When the ion box 1 changes from a negative pressure state to a positive pressure state, the solenoid valve 5 opens, and the gas inside the ion box 1 carries the waste gas into the treatment box 7 through the three-way valve 3. The waste gas comes into contact with the activated carbon plate 9 and the nano-roll material 10 in sequence and completes adsorption and filtration, thereby achieving the effect of purifying the waste gas.

[0051] The working principle and usage process of this invention are as follows: In use, the vacuum machine 4 first extracts the gas inside the ion box 1 through the three-way valve 3 to create a vacuum state inside the ion box 1. Then, the liquid is injected into the ion box 1 through the extraction needle 2 for ionization treatment. When the liquid or gas mass spectrometry detection is completed, the compressor 13 is turned on. The compressor 13 compresses the external gas and pressurizes it to be delivered into the ion box 1. When the ion box 1 changes from a negative pressure state to a positive pressure state, the solenoid valve 5 is opened. The gas inside the ion box 1 carries the waste gas through the three-way valve 3 into the treatment box 7. The waste gas comes into contact with the activated carbon plate 9 and the nanofiber roll 10 in sequence and completes adsorption filtration, thereby achieving the effect of purifying the waste gas.

[0052] In summary, the exhaust structure and method of the atmospheric pressure ion source of this mass spectrometer can improve the functionality of the existing ion source exhaust structure, avoid the exhaust gas from easily affecting the environment, prevent environmental pollution, and greatly improve the environmental protection effect of the mass spectrometer.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust structure for an atmospheric pressure ion source of a mass spectrometer, comprising an ion box (1); The needle (2) is connected to the top of the ion box (1); characterized in that The bottom of the ion box (1) is connected to a three-way valve (3), the bottom end of the three-way valve (3) is connected to a vacuum machine (4), the other end of the three-way valve (3) is connected to a solenoid valve (5), a bracket (6) is fixedly connected to the left side of the ion box (1), and a processing box (7) is fixedly connected to the side of the bracket (6) away from the ion box (1). The output end of the solenoid valve (5) is connected to the right side of the processing box (7). Partitions (8) are fixedly connected to the left and right sides inside the processing box (7). The top of the ion box (8) is provided with filter material, including activated carbon plate (9), the activated carbon plate (9) is provided on the top of the partition (8), the top of the activated carbon plate (9) is provided with nano roll material (10), the inside of the treatment box (7) is provided with filter cartridge (11), the activated carbon plate (9) and the nano roll material (10) are both located inside the filter cartridge (11), the left side of the ion box (1) is fixedly connected with compressor (13), the output end of the compressor (13) is connected to the left side of the ion box (1).

2. The exhaust structure of a mass spectrometer atmospheric pressure ion source according to claim 1, characterized in that: The filter cartridge (11) is provided with a flow divider plate (12) inside. The surface of the flow divider plate (12) is provided with several through holes. The flow divider plate (12) is located at the bottom of the activated carbon plate (9) and the nano-roll material (10).

3. The exhaust structure of a mass spectrometer atmospheric pressure ion source according to claim 1, characterized in that: The input end of the compressor (13) is connected to a connecting pipe (14), and the side of the connecting pipe (14) away from the compressor (13) is connected to the right side of the processing box (7). The connecting pipe (14) is located on the right side of the nano-roll material (10).

4. The exhaust structure of a mass spectrometer atmospheric pressure ion source according to claim 1, characterized in that: A controller (15) is fixedly connected to the left side of the ion box (1), and the input ends of the needle extraction (2), vacuum machine (4), solenoid valve (5) and compressor (13) are all electrically connected to the output end of the controller (15).

5. The exhaust structure of a mass spectrometer atmospheric pressure ion source according to claim 1, characterized in that: Airbags (16) are fixedly connected to the bottom of the left and right sides of the inner wall of the ion box (1). The airbags (16) are elastic and have recesses (17) on their surface.

6. The exhaust structure and exhaust method of a mass spectrometer atmospheric pressure ion source according to any one of the preceding claims, characterized in that: Includes the following steps: S1: The vacuum machine (4) first extracts the gas inside the ion box (1) through the three-way valve (3) to create a vacuum inside the ion box (1); S2: The needle (2) injects the liquid into the interior of the ion box (1) for ionization treatment; S3: When the liquid or gas mass spectrometry detection is completed, turn on the compressor (13). The compressor (13) compresses the external gas and pressurizes it to deliver it into the ion box (1). S4: When the ion box (1) changes from negative pressure to positive pressure, the solenoid valve (5) opens. The gas inside the ion box (1) carries the waste gas through the three-way valve (3) into the treatment box (7). The waste gas comes into contact with the activated carbon plate (9) and the nano-roll material (10) in sequence and completes adsorption filtration, thereby achieving the effect of purifying the waste gas.

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