CN204614762U - A kind of sampling device for gas mass spectral analysis - Google Patents
A kind of sampling device for gas mass spectral analysis Download PDFInfo
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- CN204614762U CN204614762U CN201520304118.3U CN201520304118U CN204614762U CN 204614762 U CN204614762 U CN 204614762U CN 201520304118 U CN201520304118 U CN 201520304118U CN 204614762 U CN204614762 U CN 204614762U
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- spherical plate
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- sample feeding
- capillary sample
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Abstract
The utility model discloses a kind of sampling device for gas mass spectral analysis.It comprises the spherical plate being arranged on capillary sample feeding pipe introducing position on the wall of vacuum chamber chamber, and spherical plate is recessed in vacuum chamber, and is provided with through hole in spherical plate; Be outside equipped with the rubber be fixedly fitted on the wall of vacuum chamber chamber in spherical plate, between rubber and spherical plate, form cavity; Capillary sample feeding pipe horizontal through rubber, and is fixedly mounted on rubber, seals between capillary sample feeding pipe and rubber, and capillary sample feeding pipe again horizontal through spherical plate, and can be free to slide relative to spherical plate; The end of capillary sample feeding pipe is just to the sample input port of mass analyzer.The utility model structure is simple, achieves automation.
Description
Technical field
The utility model relates to a kind of sampling device for gas mass spectral analysis.
Background technology
Gas mass spectrometry is that a kind of mode with electronics bombardment makes tested ionizing gas molecules, form the ion of various mass-to-charge ratio, then utilize electromagnetic principles to make ion be separated by different mass-to-charge ratioes and measure the intensity of various ion, thus determine the molecular weight of measured matter and the method for structure.Mass spectrometer is generally made up of parts such as sample introduction system, ion source, mass analyzer, detector, data handling systems.Gas ion can be carried out being separated the device differentiated is exactly mass analyzer.Mass analyzer is arranged in vacuum chamber, and analytic sample only has just can be introduced in ion source by specific method and access, and is ionized, and is then introduced into mass analyzer and carries out quality analysis.Generally all parts introducing task for completing this sample are referred to as sample introduction device.
Chromatography applies maximum samples in mass spectrum to introduce method, and one of study hotspot of this sampling system is exactly the interfacing between mass spectrum and chromatogram.The sample of GC is introduced directly in mass spectrographic mass analyzer by capillary.In ion source, not ionizable measured matter can remain in mass analyzer, affects subsequent analysis precision, therefore often needs to clean mass analyzer.And mass analyzer is placed in mass spectrometric vacuum chamber, mass analyzer is connected with corresponding sample introduction system, therefore, to cleaning quality analyzer, sample introduction device need be separated with mass analyzer, then mass analyzer be taken out in vacuum chamber and cleans.
At present, adopting chromatographic process sample to be introduced into mass spectrometric interface arrangement is generally manual type, when dismantling from mass spectrometer by interface, mass spectrometer is needed to remove chromatograph certain angle, then interface arrangement is manually extracted mass analyzer by operating personnel, so just realize interface arrangement to be separated with mass spectrometric, thus further mass analyzer taken out from vacuum chamber and clean.
Manual type interface not only operates inconvenience, and because of the participation of people, instrument state is affected and is difficult to keep stable and consistent, and then the accuracy of impact analysis result.
Utility model content
The technical problems to be solved in the utility model is: the sampling device for gas mass spectral analysis providing the simple automation of a kind of structure.
In order to solve the problems of the technologies described above, technical solution adopted in the utility model is:
For a sampling device for gas mass spectral analysis, comprise the spherical plate being arranged on capillary sample feeding pipe introducing position on the wall of vacuum chamber chamber, spherical plate is recessed in vacuum chamber, and is provided with through hole in spherical plate; Be outside equipped with the rubber be fixedly fitted on the wall of vacuum chamber chamber in spherical plate, between rubber and spherical plate, form cavity; Capillary sample feeding pipe horizontal through rubber, and is fixedly mounted on rubber, seals between capillary sample feeding pipe and rubber, and capillary sample feeding pipe again horizontal through spherical plate, and can be free to slide relative to spherical plate; The end of capillary sample feeding pipe is just to the sample input port of mass analyzer.
Capillary sample feeding pipe is fixedly mounted in protection tube, and protection tube is fixedly connected with rubber by inside and outside two clamping plates, and protection tube horizontal through the pilot hole in spherical plate, and can be free to slide relative to spherical plate.
Spherical plate is provided with the recess corresponding with the shape of clamping plate.
Beneficial effect acquired by the utility model:
When vacuum chamber vacuumizes, rubber is fitted in the outside of spherical plate, and drives capillary sample feeding pipe to slide to mass analyzer relative to spherical plate, arrives sample introduction position, is embodied as the function of mass analyzer input sample; When vacuum chamber recovers normal pressure, rubber also returns to normal, and drives capillary sample feeding pipe outwards to slide relative to spherical plate, and away from mass analyzer; Like this, do not need manually just to realize being separated of capillary sample feeding pipe and mass analyzer, further mass analyzer taken out from vacuum chamber and clean.The utility model structure is simple, achieves automation.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is organigram of the present utility model.
Embodiment
As shown in Figure 1, a kind of sampling device for gas mass spectral analysis, comprise and be arranged on capillary sample feeding pipe 2 on the wall of vacuum chamber 1 chamber and introduce the spherical plate 3 at position, spherical plate 3 is recessed in vacuum chamber 1, and is provided with through hole 4 in spherical plate 3; Be outside equipped with the rubber 5 be fixedly fitted on the wall of vacuum chamber 1 chamber in spherical plate 3, between rubber 5 and spherical plate 3, form cavity 6; Capillary sample feeding pipe 2 horizontal through rubber 5, and is fixedly mounted on rubber 5, seals between capillary sample feeding pipe 2 and rubber 5, and capillary sample feeding pipe 2 again horizontal through spherical plate 3, and can be free to slide relative to spherical plate 3; The end of capillary sample feeding pipe 2 is just to the sample input port 8 of mass analyzer 7.
Capillary sample feeding pipe 2 is fixedly mounted in protection tube 9, and protection tube 9 is fixedly connected with rubber 5 by inside and outside two clamping plates 10, and protection tube 9 horizontal through the pilot hole in spherical plate 3, and can be free to slide relative to spherical plate 3.
Spherical plate 3 is provided with the recess 11 corresponding with the shape of clamping plate 10.
When vacuum chamber 1 vacuumizes, rubber 5 is fitted in the outside of spherical plate 3, and drives capillary sample feeding pipe 2 to slide to mass analyzer 7 relative to spherical plate 3, arrives sample introduction position, is embodied as the function that mass analyzer 7 inputs sample; When vacuum chamber 1 recovers normal pressure, rubber 5 also returns to normal, and drives capillary sample feeding pipe 2 outwards to slide relative to spherical plate 3, and away from mass analyzer 7; Like this, do not need manually just to realize being separated of capillary sample feeding pipe 2 and mass analyzer 7, further mass analyzer 7 taken out from vacuum chamber 1 and clean.The utility model structure is simple, achieves automation.
Claims (3)
1. the sampling device for gas mass spectral analysis, it is characterized in that: comprise the spherical plate (3) being arranged on capillary sample feeding pipe (2) introducing position on the wall of vacuum chamber (1) chamber, spherical plate (3) is recessed in vacuum chamber (1), and is provided with through hole (4) in spherical plate (3); Be outside equipped with the rubber (5) be fixedly fitted on the wall of vacuum chamber (1) chamber in spherical plate (3), between rubber (5) and spherical plate (3), form cavity (6); Capillary sample feeding pipe (2) is horizontal through rubber (5), and be fixedly mounted on rubber (5), seal between capillary sample feeding pipe (2) and rubber (5), capillary sample feeding pipe (2) again horizontal through spherical plate (3), and can be free to slide relative to spherical plate (3); The end of capillary sample feeding pipe (2) is just to the sample input port (8) of mass analyzer (7).
2. the sampling device for gas mass spectral analysis according to claim 1; it is characterized in that: capillary sample feeding pipe (2) is fixedly mounted in protection tube (9); protection tube (9) is fixedly connected with rubber (5) by inside and outside two clamping plates (10); protection tube (9) horizontal through the pilot hole in spherical plate (3), and can be free to slide relative to spherical plate (3).
3. the sampling device for gas mass spectral analysis according to claim 2, is characterized in that: in spherical plate (3), be provided with the recess (11) corresponding with the shape of clamping plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304118.3U CN204614762U (en) | 2015-05-12 | 2015-05-12 | A kind of sampling device for gas mass spectral analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304118.3U CN204614762U (en) | 2015-05-12 | 2015-05-12 | A kind of sampling device for gas mass spectral analysis |
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| Publication Number | Publication Date |
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| CN204614762U true CN204614762U (en) | 2015-09-02 |
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| CN201520304118.3U Active CN204614762U (en) | 2015-05-12 | 2015-05-12 | A kind of sampling device for gas mass spectral analysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872357A (en) * | 2018-09-19 | 2018-11-23 | 内蒙古蒙牛乳业（集团）股份有限公司 | Mass Spectrometry detection method |
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2015
- 2015-05-12 CN CN201520304118.3U patent/CN204614762U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872357A (en) * | 2018-09-19 | 2018-11-23 | 内蒙古蒙牛乳业（集团）股份有限公司 | Mass Spectrometry detection method |
| CN108872357B (en) * | 2018-09-19 | 2021-06-15 | 内蒙古蒙牛乳业（集团）股份有限公司 | Mass spectrometry detection method |
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