CN212485274U - Differential electrochemical mass spectrometer double-path sample introduction system - Google Patents
Differential electrochemical mass spectrometer double-path sample introduction system Download PDFInfo
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- CN212485274U CN212485274U CN202021576336.XU CN202021576336U CN212485274U CN 212485274 U CN212485274 U CN 212485274U CN 202021576336 U CN202021576336 U CN 202021576336U CN 212485274 U CN212485274 U CN 212485274U
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Abstract
The utility model discloses a differential electrochemistry mass spectrograph double-circuit sampling system, including the mass spectrograph, the quartz capillary of single thin layer electrochemistry flow-through cell and battery is connected to the mass spectrograph, single thin layer electrochemistry flow-through cell includes the cell body and with the fixed integrative lower cell body of last cell body, goes up the cell body and is equipped with the ventilated membrane that blocks water down between the cell body, upward be equipped with reference electrode subassembly, work electrode subassembly and supplementary electrode subassembly on the cell body, the top of the ventilated membrane that blocks water forms single thin layer electrochemistry cell, is equipped with inlet and liquid outlet on reference electrode subassembly and the supplementary electrode subassembly respectively, the cell body is equipped with gas outlet down. The utility model discloses contain the double-circuit sampling system, provide very big facility to the people that both need test electrocatalysis and need test battery.
Description
Technical Field
The utility model relates to the field of chemical instruments, more precisely a differential electrochemistry mass spectrograph double-circuit sampling system.
Background
The differential electrochemical mass spectrometer is an in-situ electrochemical method, can obtain qualitative and quantitative information of an interface by detecting volatile products, and becomes one of indispensable important tools for researching an electrochemical reaction mechanism. A differential electrochemical mass spectrometer is a device that uses an electrochemical reaction device in conjunction with a mass spectrometer, and common electrochemical reactions include batteries and electrocatalytic reactions. Volatile products generated by the electrocatalysis chemical reaction enter a vacuum system pipeline of a mass spectrometer from a hydrophobic and breathable membrane interface, and a change curve of the current of ions with different mass-to-charge ratios along with time is obtained through the mass spectrometer; the battery enters a vacuum system pipeline of a mass spectrometer through a quartz capillary, and a change curve of the current of ions with different mass-to-charge ratios along with time is obtained through the mass spectrometer.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a differential electrochemistry mass spectrograph double-circuit sampling system, it both can test the electro-catalysis system and can test the battery system.
The utility model adopts the following technical scheme:
the utility model provides a differential electrochemistry mass spectrograph double-circuit sampling system, includes the mass spectrograph, and the quartz capillary of single thin-layer electrochemistry flow-through cell and battery is connected to the mass spectrograph, single thin-layer electrochemistry flow-through cell includes the cell body and with the fixed integrative lower cell body of last cell body, goes up and is equipped with the ventilated membrane that blocks water between cell body and the lower cell body, upward be equipped with reference electrode subassembly, work electrode subassembly and auxiliary electrode subassembly on the cell body, the top that blocks water the ventilated membrane forms single thin-layer electrochemistry cell, is equipped with inlet and liquid outlet on reference electrode subassembly and the auxiliary electrode subassembly respectively, the cell body is equipped with.
And a mass spectrum fine adjustment valve, a mass spectrum coarse adjustment valve, a side pumping assembly and a clamp are sequentially arranged on the mass spectrometer and the pipeline of the single-thin-layer electrochemical flow cell, and the clamp fixes the single-thin-layer electrochemical flow cell.
And a control valve is arranged on a connecting pipeline of the mass spectrometer and the quartz capillary tube of the battery.
The water-blocking and air-permeable sewage treatment device further comprises a gasket, and the gasket is arranged between the upper pool body and the water-blocking and air-permeable membrane.
The gasket is a thin film gasket.
Still include the filter core, just locate the exit on the filter core, just the filter core is in the below of the ventilated membrane that blocks water.
The reference electrode assembly and the auxiliary electrode assembly are disposed at both sides of the working electrode assembly.
The reference electrode assembly comprises a reference electrode, a tee joint, a screw cap and a sealing ring, one through hole of the tee joint is communicated and fixed with the upper tank body, the other through hole of the tee joint is connected and fixed with the reference electrode, and the third through hole of the tee joint is a feeding hole. The reference electrode is fixed in the nut, and the nut and the tee joint are sealed through a sealing ring.
The auxiliary electrode assembly comprises an auxiliary electrode, a tee joint, a screw cap and a sealing ring, one through hole of the tee joint is communicated and fixed with the upper tank body, the other through hole of the tee joint is connected and fixed with the auxiliary electrode, and the third through hole of the tee joint is a discharge hole. The auxiliary electrode is fixed in the nut, and the nut and the tee joint are sealed through a sealing ring.
The working electrode assembly comprises a working electrode, a screw cap and a sealing ring, the working electrode is fixed on the screw cap, the other end of the screw cap is fixed on the upper cell body, the sealing ring is arranged between the screw cap and the upper cell body, and sealing is carried out through the sealing ring.
The utility model has the advantages that: the utility model discloses contain the double-circuit sampling system, provide very big facility to the people that both need test electrocatalysis and need test battery.
Drawings
The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a single-layer electrochemical flow cell according to the present invention.
Detailed Description
The following further illustrates embodiments of the present invention:
as shown in figure 1, the utility model discloses a differential electrochemistry mass spectrograph double-circuit sampling system, including mass spectrograph 7, the quartz capillary 8 of single thin layer electrochemistry flow cell 4 and battery is connected to mass spectrograph 7. The single thin layer electrochemical flow cell 4 serves as a generator of electrocatalytic reactions.
The utility model discloses a be equipped with mass spectrum fine tuning valve 1, mass spectrum coarse adjusting valve 2, other subassembly 5 and the clamp 3 of taking out on the pipeline of mass spectrograph 7 and single thin layer electrochemistry flow cell 4 in proper order, and the clamp 3 is fixed with single thin layer electrochemistry flow cell 4. The mass spectrum balancing time can be shortened through the mass spectrum rough adjusting valve 2 and the mass spectrum fine adjusting valve 1, the mass spectrum can be better controlled, and the damage to an instrument caused by too much air entering the mass spectrometer is avoided. The side pumping assembly can shorten the time required for mass spectrum balancing. To the electro-catalytic reaction, thereby the fine catalyst of some catalytic performance can produce a large amount of gas and make the baseline of mass spectrograph can fluctuate at the electrochemical reaction in-process, waits for the steady time of baseline to need very of a specified duration, consequently utilizes the utility model provides a subassembly 5 is taken out to other side, has shortened baseline balance time greatly.
The utility model discloses a be equipped with control valve 6 on the connecting tube of the quartz capillary 8 of mass spectrograph 7 and battery, through the intercommunication or the disconnection of control valve 6 regulation quartz capillary 8 to realize that the double-circuit advances the appearance.
As shown in fig. 2, it is the structure schematic diagram of single-thin layer electrochemical flow cell of the utility model, including last cell body 41 and with the fixed integrative lower cell body 42 of last cell body 41, go up and be equipped with the ventilated membrane 47 that blocks water between cell body 41 and the lower cell body 42, upward be equipped with reference electrode subassembly 43, work electrode subassembly 44 and auxiliary electrode subassembly 45 on the cell body 41, the top that blocks water ventilated membrane 47 forms electrochemical cell, and reference electrode subassembly 43 and auxiliary electrode subassembly go up 45 and are equipped with inlet 435 and liquid outlet 455 respectively, through reference electrode subassembly 43 work electrode subassembly 44 with auxiliary electrode subassembly 45 carries out the analysis and monitoring from time to the solution that awaits measuring, the cell body is equipped with gas outlet down, is seen off gas component and volatile material and is seen off through gas outlet.
The utility model discloses still include gasket 46, just gasket 46 locates go up cell body 41 with between the ventilated membrane 47 blocks water. The gasket is a film gasket and is of a hollow structure.
The utility model discloses still include filter core 48, just locate the exit on the filter core 48, just filter core 48 is in the below of the ventilated membrane 47 that blocks water is separated out gas component and volatile material and is filtered the edulcoration through the filter core.
Because the utility model discloses a gasket is in the cell body and blocks water between the ventilated membrane, consequently can block water between the ventilated membrane and last cell body, because the gasket is hollow structure, and the gasket is the film gasket, can form a film cavity at gasket hollow structure part, the solution of storage part to at the inside formation electrochemical cell of gasket, the liquid through this electrochemical cell circulates by inlet and liquid outlet often, consequently forms a single thin layer electrochemistry flow-through cell.
The upper tank body is respectively provided with three through holes, and the reference electrode assembly 43, the working electrode assembly 44 and the auxiliary electrode assembly 45 are respectively communicated through the three through holes.
The reference electrode assembly 43 comprises a reference electrode 431, a screw cap 432, a sealing ring 433 and a tee 434, wherein one through hole of the tee 434 is fixedly communicated with the upper cell body, the other through hole of the tee 434 is fixedly connected with the reference electrode 431, and the third through hole of the tee 434 is a feed inlet 435. The reference electrode 431 is fixed inside the nut 432, and the nut 432 and the tee are sealed by a sealing ring 33.
The working electrode assembly 44 includes a working electrode 441, a nut 442, and a sealing ring 443, the working electrode 441 is fixed to the nut 442, the other end of the nut 442 is fixed to the upper cell body, and the sealing ring 443 is disposed between the nut 442 and the upper cell body, and is sealed by the sealing ring.
The auxiliary electrode assembly 45 comprises an auxiliary electrode 451, a screw cap 452, a sealing ring 453 and a tee 454, wherein one through hole of the tee 454 is fixedly communicated with the upper tank body, the other through hole of the tee 454 is connected with the fixed auxiliary electrode 451, and the third through hole of the tee 454 is a discharge hole 455. The auxiliary electrode 451 is fixed inside the nut 452, and the nut 452 and the tee joint are sealed by a seal 453.
The utility model provides a both sides of working electrode are located respectively to reference electrode and auxiliary electrode.
The utility model provides a material of ventilated membrane that blocks water is the PTFE material.
The utility model discloses when using, put into working electrode in the middle of last cell body, counter electrode and reference electrode are put into respectively to the left and right sides, and the ventilated membrane that blocks water is spread on the filter core upper berth of cell body down, spreads the one deck gasket again, will go up the cell body with 6 screws at last and screw up with lower cell body, and the equipment is simple and convenient.
The utility model discloses an upper reaches are arranged in to eccentric single thin-layer pond working electrode in, and low reaches are arranged in to the filter core, and working electrode is the reaction in the upper reaches, flows to the low reaches after the result enrichment and is taken out the entering detector, is favorable to the detection of trace electrochemistry result.
The utility model discloses a theory of operation does: a single-thin-layer electrochemical flow cell is formed among the upper cell body, the lower cell body, the gasket and the water-blocking and breathable film, a solution to be measured enters the single-thin-layer electrochemical flow cell from a tee joint of the reference electrode, then flows out from a tee joint outlet of the auxiliary electrode, and is measured through the working electrode in the single-thin-layer electrochemical flow cell. The design of the liquid inlet tee joint and the liquid outlet tee joint of the utility model reduces the number of the openings of the upper cell body and the leakage points, ensures the formation of electrolyte liquid film by using the ultrathin gasket, and can realize the monitoring of the electrocatalysis process and the detection of real-time reaction products; the PTFE water-blocking and breathable film is used, so that gas components and volatile substances in a solution can be separated, products of the electrochemical cell are generated in real time and are immediately pumped away for detection, and products with extremely small product generation amount cannot reach the detection lower limit of an instrument and cannot be detected by the instrument.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a differential electrochemistry mass spectrograph double-circuit sampling system, its characterized in that, includes the mass spectrograph, and single thin-layer electrochemistry flow-through cell and quartz capillary are connected to the mass spectrograph, single thin-layer electrochemistry flow-through cell includes the cell body and with the fixed integrative lower cell body of last cell body, goes up and is equipped with the ventilated membrane that blocks water between cell body and the lower cell body, upward be equipped with reference electrode subassembly, work electrode subassembly and auxiliary electrode subassembly on the cell body, the top that blocks water the ventilated membrane forms single thin-layer electrochemistry cell, is equipped with inlet and liquid outlet on reference electrode subassembly and the auxiliary electrode subassembly respectively, the cell body is equipped with.
2. The differential electrochemical mass spectrometer dual-path sample introduction system as claimed in claim 1, wherein the mass spectrometer and the single thin layer electrochemical flow cell are sequentially provided with a mass spectrometer fine adjustment valve, a mass spectrometer rough adjustment valve, a side pumping assembly and a clamp, and the clamp fixes the single thin layer electrochemical flow cell.
3. The differential electrochemical mass spectrometer dual-path sample introduction system as claimed in claim 1, wherein a control valve is arranged on a connecting pipeline between the mass spectrometer and the quartz capillary.
4. The dual-path sample introduction system of the differential electrochemical mass spectrometer as claimed in claim 1, further comprising a gasket, wherein the gasket is disposed between the upper cell body and the water-blocking and gas-permeable membrane.
5. The differential electrochemical mass spectrometer dual-path sampling system of claim 4, wherein the gasket is a thin film gasket.
6. The differential electrochemical mass spectrometer dual-path sampling system as claimed in claim 1, further comprising a filter element, wherein the filter element is disposed at the outlet, and the filter element is disposed below the water-blocking and gas-permeable membrane.
7. The differential electrochemical mass spectrometer dual-path sample introduction system as claimed in claim 1, wherein the reference electrode assembly and the auxiliary electrode assembly are disposed at both sides of the working electrode assembly.
8. The differential electrochemical mass spectrometer two-way sample introduction system is characterized in that the reference electrode assembly comprises a reference electrode, a tee joint, a screw cap and a sealing ring, one through hole of the tee joint is fixedly communicated with the upper cell body, the other through hole of the tee joint is fixedly connected with the reference electrode, and the third through hole of the tee joint is a feeding hole.
9. The differential electrochemical mass spectrometer two-way sampling system according to claim 1, wherein the auxiliary electrode assembly comprises an auxiliary electrode, a tee joint, a nut and a sealing ring, one through hole of the tee joint is fixedly communicated with the upper cell body, the other through hole of the tee joint is fixedly connected with the auxiliary electrode, and the third through hole of the tee joint is a discharge hole.
10. The dual-channel sample introduction system of the differential electrochemical mass spectrometer as claimed in claim 1, wherein the working electrode assembly comprises a working electrode, a nut and a sealing ring, the working electrode is fixed on the nut, the other end of the nut is fixed on the upper cell body, and the sealing ring is arranged between the nut and the upper cell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021576336.XU CN212485274U (en) | 2020-07-31 | 2020-07-31 | Differential electrochemical mass spectrometer double-path sample introduction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021576336.XU CN212485274U (en) | 2020-07-31 | 2020-07-31 | Differential electrochemical mass spectrometer double-path sample introduction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212485274U true CN212485274U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021576336.XU Active CN212485274U (en) | 2020-07-31 | 2020-07-31 | Differential electrochemical mass spectrometer double-path sample introduction system |
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|---|---|
| CN (1) | CN212485274U (en) |
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2020
- 2020-07-31 CN CN202021576336.XU patent/CN212485274U/en active Active
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