CN103515186B - A kind of ion mobility spectrometry gas control method in the standby state - Google Patents
A kind of ion mobility spectrometry gas control method in the standby state Download PDFInfo
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- CN103515186B CN103515186B CN201210222314.7A CN201210222314A CN103515186B CN 103515186 B CN103515186 B CN 103515186B CN 201210222314 A CN201210222314 A CN 201210222314A CN 103515186 B CN103515186 B CN 103515186B
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- ion mobility
- mobility spectrometry
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- control method
- standby state
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Abstract
A kind of ion mobility spectrometry gas control method in the standby state, adopt the mode of intermittent gas supply, control the time span of air feed, control the ratio of service life and time of stopping the supple of gas or steam, maintain ion mobility spectrometry at suitable holding state, so that fast quick-recovery enters operating state.Gas control method under this holding state, simple possible, controls automatically, can improve the life-span of drying tube in ion mobility spectrometry instrument.
Description
Technical field
The invention belongs to the analytical technology of chemical analysis field ion mobility spectrometry, specifically a kind of ion mobility spectrometry gas control method in the standby state.
Background technology
Adopt Ion mobility spectrometry when carrying out sample analysis, need to produce clean air continuously by the air feed pump of instrument internal, drying pipe, provide and analyze necessary drift gas and carrier gas, ensure the normal assay state of ion mobility spectrometry.Even under holding state, also to open air feed pump, maintain pure air and carry out purge instrument.
Drier finite capacity in drying tube, when air feed pump uses continuously, needs frequently to change drier, to keep ion mobility spectrometry can normal assay.If close air feed pump and standby for a long time, before again analyzing, need to purge for a long time with pure air, ion mobility spectrometry could be recovered, enter normal assay state, so in the standby state, maintain ion mobility spectrometry inner clean, reduce the drying tube replacement cycle, just need the gas control method under holding state.
Therefore the present invention is by a kind of ion mobility spectrometry gas control method in the standby state, solves the problem.
Summary of the invention
The object of the present invention is to provide a kind of ion mobility spectrometry gas control method in the standby state.For achieving the above object, adopting the mode of intermittent gas supply, controlling the time span of air feed, control service life and the ratio of time of stopping the supple of gas or steam, maintain ion mobility spectrometry at suitable holding state, so that fast quick-recovery enters operating state.
In the mode of intermittent gas supply, control the time span of air feed, time span is 5-120 minute; In intermittent gas supply mode, controlling service life with the ratio of time of stopping the supple of gas or steam is 1:0.1 to 1:8.
In the process of intermittent gas supply, the time span controlling air feed is 15-60 minute, and controlling service life with the ratio of time of stopping the supple of gas or steam is 1:0.2 to 1:4.
Gas control method under this holding state, simple possible, controls automatically, can improve the life-span of drying tube in ion mobility spectrometry instrument.
Embodiment
Embodiment 1:
Contrast: ion mobility spectrometry in working order under, for the detection of TNT, provide continuously air be carrier gas and drift gas; Ion mobility spectrometry in the standby state, passes into air continuously; The 10 days useful life of drying tube;
The present invention:
Ion mobility spectrometry in working order under, for the detection of TNT, provide continuously air be carrier gas and drift gas;
Ion mobility spectrometry in the standby state, adopt the mode of intermittent gas supply (air), the time span controlling air feed is 15 minutes, the control time of stopping the supple of gas or steam is 3 minutes, service life is 1:0.2 with the ratio of time of stopping the supple of gas or steam, within the time of intermittent gas supply, the useful life 1.2 times of drying tube can be improved.
Recover to continue air feed (air) after 20 minutes, ion mobility spectrometry can normal assay sample.
Embodiment 2:
Contrast: ion mobility spectrometry in working order under, for the detection of TNT, provide continuously air be carrier gas and drift gas; Ion mobility spectrometry in the standby state, passes into air continuously; The 10 days useful life of drying tube;
The present invention:
Ion mobility spectrometry in working order under, for the detection of TNT, provide continuously air be carrier gas and drift gas;
Ion mobility spectrometry in the standby state, adopt the mode of intermittent gas supply (air), the time span controlling air feed is 20 minutes, the control time of stopping the supple of gas or steam is 40 minutes, service life is 1:2 with the ratio of time of stopping the supple of gas or steam, within the time of intermittent gas supply, the useful life 3 times of drying tube can be improved.
Recover to continue air feed (air) after 20 minutes, ion mobility spectrometry can normal assay sample.
Embodiment 3:
Contrast: ion mobility spectrometry in working order under, for the detection of TNT, provide continuously air be carrier gas and drift gas; Ion mobility spectrometry in the standby state, passes into air continuously; The 10 days useful life of drying tube;
The present invention:
Ion mobility spectrometry in working order under, for the detection of TNT, provide continuously air be carrier gas and drift gas;
Ion mobility spectrometry in the standby state, adopt the mode of intermittent gas supply (air), the time span controlling air feed is 60 minutes, the control time of stopping the supple of gas or steam is 240 minutes, service life is 1:4 with the ratio of time of stopping the supple of gas or steam, within the time of intermittent gas supply, the useful life 5 times of drying tube can be improved.
Recover to continue air feed (air) after 40 minutes, ion mobility spectrometry can normal assay sample.
Claims (3)
1. ion mobility spectrometry gas control method in the standby state, adopt the mode of intermittent gas supply, control the time span of air feed, control the ratio of service life and time of stopping the supple of gas or steam, maintain ion mobility spectrometry at suitable holding state, so that fast quick-recovery enters operating state;
In the mode of intermittent gas supply, control the time span of air feed, time span is 5-120 minute;
In intermittent gas supply mode, controlling service life with the ratio of time of stopping the supple of gas or steam is 1:0.1 to 1:8.
2. ion mobility spectrometry according to claim 1 gas control method in the standby state, is characterized in that: in the mode of intermittent gas supply, and control the time span of air feed, time span is 15-60 minute.
3. ion mobility spectrometry according to claim 1 gas control method in the standby state, is characterized in that: in intermittent gas supply mode, and controlling service life with the ratio of time of stopping the supple of gas or steam is 1:0.2 to 1:4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222314.7A CN103515186B (en) | 2012-06-29 | 2012-06-29 | A kind of ion mobility spectrometry gas control method in the standby state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222314.7A CN103515186B (en) | 2012-06-29 | 2012-06-29 | A kind of ion mobility spectrometry gas control method in the standby state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103515186A CN103515186A (en) | 2014-01-15 |
| CN103515186B true CN103515186B (en) | 2015-12-09 |
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| CN201210222314.7A Active CN103515186B (en) | 2012-06-29 | 2012-06-29 | A kind of ion mobility spectrometry gas control method in the standby state |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520056A (en) * | 2009-06-30 | 2012-06-27 | 同方威视技术股份有限公司 | Dopant gas generating device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7946150B2 (en) * | 2005-07-20 | 2011-05-24 | Smiths Detection-Watford Limited | Detection systems |
| US20090078862A1 (en) * | 2007-07-30 | 2009-03-26 | Dan Rodier | Ion mobility spectrometry analyzer for detecting peroxides |
| GB201021360D0 (en) * | 2010-12-16 | 2011-01-26 | Thermo Fisher Scient Bremen Gmbh | Apparatus and methods for ion mobility spectrometry |
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- 2012-06-29 CN CN201210222314.7A patent/CN103515186B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520056A (en) * | 2009-06-30 | 2012-06-27 | 同方威视技术股份有限公司 | Dopant gas generating device |
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| CN103515186A (en) | 2014-01-15 |
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