CN103163013A - Thermal analysis and permeable membrane compound device for solid and liquid sample injection - Google Patents
Thermal analysis and permeable membrane compound device for solid and liquid sample injection Download PDFInfo
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- CN103163013A CN103163013A CN2011104199010A CN201110419901A CN103163013A CN 103163013 A CN103163013 A CN 103163013A CN 2011104199010 A CN2011104199010 A CN 2011104199010A CN 201110419901 A CN201110419901 A CN 201110419901A CN 103163013 A CN103163013 A CN 103163013A
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Abstract
A thermal analysis and permeable membrane compound device for solid and liquid sampling comprises an upper cover body, a permeable membrane, a thermal analysis body, a sampling cloth, bolts and a switch electromagnetic valve. The permeable membrane is arranged between the upper cover body and the thermal analysis body, which are fixed together through bolts. A sampling cloth containing solid and liquid samples is inserted into a sampling cloth cavity, and the switch electromagnetic valve is pressed on the thermal analysis body for heating, so as to obtain a sample gas; the sample gas diffuses into a membrane rear cavity through the permeable membrane and is taken away by carrier gas passing across a membrane rear inlet and a membrane rear outlet for analysis. Residual sample in the pyrolysis cavity is blown and cleaned by carrier gas passing across a membrane front inlet and a membrane front outlet. The thermal analysis and permeable membrane compound device for solid and liquid sample injection has advantages of compact structure and small dead volume, and can realize thermal analysis, efficient passing through the membrane and rapid analysis of the sample.
Description
Technical field
The invention belongs to the analytical technology of the solid-liquid of chemical analysis field, specifically the set composite with permeable membrane is analysed in the pyrolysis of a kind of solid-liquid sample introduction.
Background technology
When adopting gas analysis technology to analyze, usually need at first solid, fluid sample heat hot to be resolved to form corresponding gaseous sample, then this gaseous sample is analyzed, for example a kind of solid of inventing of number of patent application ZL 200610088949.7, the sampling device of fluid sample.
Simultaneously, due to solid, fluid sample potpourri often, when adding thermosetting gas except compound itself, also comprise water vapor and other gaseous impurities, the accuracy of interference analysis and sensitivity, therefore can adopt infiltrate membrane technology, what stop water vapor sees through film through film, assurance solid-liquid compound to be analyzed, is analyzed accurately.
Adopt respectively the device that the solid-liquid heat hot is resolved, device with permeable membrane, sample heating vaporization, gaseous sample are seen through film, analyze, increased connecting line, increased the volume at gaseous sample place, also needed to increase Insulation, finally affected the accuracy of analyzing.
Therefore the present invention has designed the pyrolysis of solid-liquid sample introduction and has analysed set composite with permeable membrane, to address the above problem.
Summary of the invention
The object of the present invention is to provide the pyrolysis of a kind of gas solid-liquid sample introduction to analyse set composite with permeable membrane.
For achieving the above object, the technical solution used in the present invention is:
The set composite with permeable membrane is analysed in the pyrolysis of a kind of solid-liquid sample introduction, comprises that body is analysed in upper cover body, permeable membrane, pyrolysis, sample cloth and switch electromagnetic valve,
The bottom of upper cover body is provided with groove, and the sidewall of upper cover body is provided with air intake opening and the gas outlet that is connected with groove;
Pyrolysis is provided with the through hole that penetration heat is resolved body in the middle part of analysing body, and the sidewall that body is analysed in pyrolysis is provided with air intake opening and the gas outlet that is connected with through hole, and pyrolysis is analysed and is provided with heating rod in body; The sidewall that body is analysed in pyrolysis is provided with the sampling cloth that is connected with through hole and picks and places mouth; Heating rod is electrically connected to external power;
Upper cover body and pyrolysis are analysed body and are snapped together, and permeable membrane is placed in upper cover body and pyrolysis is analysed between body, and the both sides of permeable membrane are respectively the groove of upper cover body and the through hole that body is analysed in pyrolysis;
The other end that the body through hole is analysed in pyrolysis is provided with switch electromagnetic valve, and spool one end of switch electromagnetic valve is placed in through hole.
Upper cover body is analysed body with pyrolysis and is in the same place by bolted.
In the groove of upper cover body and pyrolysis analyse in the through hole of body and be respectively equipped with the inserted film supporter that is complementary with groove and through hole.
The inserted film supporter is the sheet metal of porous.
Sampling cloth picks and places in mouthful receiving through-hole by sampling cloth.
Permeable membrane is the silicone rubber membrane of heatproof, and the thickness of permeable membrane is the 25-500 micron.
Pyrolysis is analysed and is provided with temperature sensor probe in body; Temperature sensor probe is connected with temperature controller by wire; Pyrolysis is analysed the heating-up temperature of body at the 50-200 degree.
The set composite with permeable membrane is analysed in the pyrolysis of this solid-liquid sample introduction, and compact conformation, dead volume are little, can realize that the pyrolysis of sample is analysed, efficiently by permeable membrane, express-analysis.
Description of drawings
Describe in further detail below in conjunction with accompanying drawing.
Fig. 1 is that the schematic diagram with the set composite of permeable membrane is analysed in the pyrolysis of solid-liquid sample introduction.
Embodiment
The set composite with permeable membrane is analysed in the pyrolysis of a kind of solid-liquid sample introduction, analysing body 4, sampling cloth 5, bolt 15 and switch electromagnetic valve 6 by upper cover body 1, permeable membrane 3, pyrolysis forms, upper cover body 1 and pyrolysis are analysed permeable membrane 3 are installed between body 4, and upper cover body 1 and pyrolysis are analysed body 4 and tightened together by bolt 15.
Chamber, film rear end 11, inserted film supporter 2, film rear end air intake opening 9, gas outlet, film rear end 13, bolt hole 10 are wherein arranged on upper cover body 1.
Pyrolysis is analysed has pyrolysis to analyse chamber 12, inserted film supporter 2, film front end airflow mouth 16, film front end gas outlet 17, sampling cloth chamber 14, heating rod hole 8, temperature sensor hole 7, bolt hole 10 on body 4.
The sampling cloth 5 of solid-liquid sample will be loaded with, be inserted into sampling cloth chamber 14, be pressed on pyrolysis with the spool of switch electromagnetic valve 6 and analyse on body 4 and heat, the sample gas that obtains, see through permeable membrane 3 and be diffused into chamber, film rear end 11, taken away by the carrier gas of flowing through film rear end air intake opening 9, gas outlet, film rear end 13 and analyze.
Remain in pyrolysis and analyse the sample in chamber 12, purge and clean by the carrier gas of flowing through film front end airflow mouth 16, film front end gas outlet 17.
When sampling cloth chamber do not sample cloth, be pressed on pyrolysis with the spool of switch electromagnetic valve and analyse pyrolysis on body when analysing the chamber, the gaseous sample direct injected by flowing through film front end airflow mouth, film front end gas outlet can realize the analysis of gaseous sample.
The set composite with permeable membrane is analysed in the pyrolysis of this solid-liquid sample introduction, and compact conformation, dead volume are little, can realize that the pyrolysis of sample is analysed, efficiently by permeable membrane, express-analysis.
Embodiment 1:
The set composite with permeable membrane is analysed in the pyrolysis of a kind of solid-liquid sample introduction, analysing body, sampling cloth, bolt and switch electromagnetic valve by upper cover body, permeable membrane, pyrolysis forms, upper cover body and pyrolysis are analysed permeable membrane are installed between body, and upper cover body is analysed body with pyrolysis and is in the same place by bolted.
The sampling cloth of 100 nanogram TNT solid samples will be loaded with, being inserted into sampling cloth chamber carries out 50 degree pyrolysis and analyses, permeable membrane thickness is 25 microns, after the TNT gaseous sample sees through the permeable membrane diffusion, taken away by the carrier gas of flowing through film rear end air intake opening, gas outlet, film rear end, be sent in ion mobility spectrometry, adopt negative ion mode to analyze, can obtain the detection signal of TNT.
Embodiment 2:
The set composite with permeable membrane is analysed in the pyrolysis of a kind of solid-liquid sample introduction, analysing body, sampling cloth, bolt and switch electromagnetic valve by upper cover body, permeable membrane, pyrolysis forms, upper cover body and pyrolysis are analysed permeable membrane are installed between body, and upper cover body is analysed body with pyrolysis and is in the same place by bolted.
The sampling cloth of 10 microlitre dimethyl sulfoxide (DMSO) liquid samples will be loaded with, being inserted into sampling cloth chamber carries out 200 degree pyrolysis and analyses, permeable membrane thickness is 500 microns, after the dimethyl sulfoxide (DMSO) gaseous sample sees through the permeable membrane diffusion, taken away by the carrier gas of flowing through film rear end air intake opening, gas outlet, film rear end, be sent in ion mobility spectrometry, adopt positive ion mode to analyze, can obtain the detection signal of dimethyl sulfoxide (DMSO).
Claims (7)
1. the set composite with permeable membrane is analysed in solid-liquid sample introduction pyrolysis, comprises that upper cover body, permeable membrane, pyrolysis analyse body, sampling cloth and switch electromagnetic valve,
The bottom of upper cover body is provided with groove, and the sidewall of upper cover body is provided with air intake opening and the gas outlet that is connected with groove;
Pyrolysis is provided with the through hole that penetration heat is resolved body in the middle part of analysing body, and the sidewall that body is analysed in pyrolysis is provided with air intake opening and the gas outlet that is connected with through hole, and pyrolysis is analysed and is provided with heating rod in body; The sidewall that body is analysed in pyrolysis is provided with the sampling cloth that is connected with through hole and picks and places mouth; Heating rod is electrically connected to external power;
Upper cover body and pyrolysis are analysed body and are snapped together, and permeable membrane is placed in upper cover body and pyrolysis is analysed between body, and the both sides of permeable membrane are respectively the groove of upper cover body and the through hole that body is analysed in pyrolysis;
The other end that the body through hole is analysed in pyrolysis is provided with switch electromagnetic valve, and spool one end of switch electromagnetic valve is placed in through hole.
2. set composite according to claim 1 is characterized in that:
Upper cover body is analysed body with pyrolysis and is in the same place by bolted.
3. set composite according to claim 1 is characterized in that:
In the groove of upper cover body and pyrolysis analyse in the through hole of body and be respectively equipped with the inserted film supporter that is complementary with groove and through hole.
4. set composite according to claim 3 is characterized in that:
The inserted film supporter is the sheet metal of porous.
5. set composite according to claim 1 is characterized in that:
Sampling cloth picks and places in mouthful receiving through-hole by sampling cloth.
6. set composite according to claim 1, it is characterized in that: permeable membrane is the silicone rubber membrane of heatproof, the thickness of permeable membrane is the 25-500 micron.
7. set composite according to claim 1 is characterized in that:
Pyrolysis is analysed and is provided with temperature sensor probe in body; Temperature sensor probe is connected with temperature controller by wire; Pyrolysis is analysed the heating-up temperature of body at the 50-200 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110419901.0A CN103163013B (en) | 2011-12-15 | 2011-12-15 | Thermal analysis and permeable membrane compound device for solid and liquid sample injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110419901.0A CN103163013B (en) | 2011-12-15 | 2011-12-15 | Thermal analysis and permeable membrane compound device for solid and liquid sample injection |
Publications (2)
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| CN103163013A true CN103163013A (en) | 2013-06-19 |
| CN103163013B CN103163013B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110419901.0A Expired - Fee Related CN103163013B (en) | 2011-12-15 | 2011-12-15 | Thermal analysis and permeable membrane compound device for solid and liquid sample injection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717188A (en) * | 2014-12-05 | 2016-06-29 | 中国科学院大连化学物理研究所 | Device capable of quickly heating liquid sample |
| CN108226267A (en) * | 2017-06-15 | 2018-06-29 | 深圳市天和时代电子设备有限公司 | A kind of split type thermal desorption sampling device |
| CN112683987A (en) * | 2020-12-30 | 2021-04-20 | 上海新漫传感科技有限公司 | Gas circuit working system of multifunctional ion mobility spectrometry |
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| US5741984A (en) * | 1996-10-21 | 1998-04-21 | Barringer Technologies Inc. | Method and apparatus for sample collection by a token |
| US5988002A (en) * | 1996-04-03 | 1999-11-23 | Barringer Research Limited | Method of collecting trace samples for analysis |
| CN1707259A (en) * | 2004-06-04 | 2005-12-14 | 中国科学院大连化学物理研究所 | Apparatus used for solid absorption stirrer thermal analyzer |
| CN1721850A (en) * | 2004-07-14 | 2006-01-18 | 中国科学院大连化学物理研究所 | A kind of solid phase extraction sample bottle and thermal analysis apparatus |
| CN101294933A (en) * | 2007-04-24 | 2008-10-29 | 中国科学院大连化学物理研究所 | Surface gas flow purging thermal desorption sampling device |
| CN102033098A (en) * | 2009-09-29 | 2011-04-27 | 中国科学院大连化学物理研究所 | Tray type thermal analysis multi-path sample introduction device |
| CN202433239U (en) * | 2011-12-15 | 2012-09-12 | 中国科学院大连化学物理研究所 | Solid and liquid sampling thermal analysis and osmotic membrane compounding device |
-
2011
- 2011-12-15 CN CN201110419901.0A patent/CN103163013B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5988002A (en) * | 1996-04-03 | 1999-11-23 | Barringer Research Limited | Method of collecting trace samples for analysis |
| US5741984A (en) * | 1996-10-21 | 1998-04-21 | Barringer Technologies Inc. | Method and apparatus for sample collection by a token |
| CN1707259A (en) * | 2004-06-04 | 2005-12-14 | 中国科学院大连化学物理研究所 | Apparatus used for solid absorption stirrer thermal analyzer |
| CN1721850A (en) * | 2004-07-14 | 2006-01-18 | 中国科学院大连化学物理研究所 | A kind of solid phase extraction sample bottle and thermal analysis apparatus |
| CN101294933A (en) * | 2007-04-24 | 2008-10-29 | 中国科学院大连化学物理研究所 | Surface gas flow purging thermal desorption sampling device |
| CN102033098A (en) * | 2009-09-29 | 2011-04-27 | 中国科学院大连化学物理研究所 | Tray type thermal analysis multi-path sample introduction device |
| CN202433239U (en) * | 2011-12-15 | 2012-09-12 | 中国科学院大连化学物理研究所 | Solid and liquid sampling thermal analysis and osmotic membrane compounding device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717188A (en) * | 2014-12-05 | 2016-06-29 | 中国科学院大连化学物理研究所 | Device capable of quickly heating liquid sample |
| CN108226267A (en) * | 2017-06-15 | 2018-06-29 | 深圳市天和时代电子设备有限公司 | A kind of split type thermal desorption sampling device |
| CN108226267B (en) * | 2017-06-15 | 2023-09-12 | 深圳市天和时代电子设备有限公司 | Split type thermal analysis sampling device |
| CN112683987A (en) * | 2020-12-30 | 2021-04-20 | 上海新漫传感科技有限公司 | Gas circuit working system of multifunctional ion mobility spectrometry |
| CN112683987B (en) * | 2020-12-30 | 2023-01-06 | 上海新漫传感科技有限公司 | Gas circuit working system of multifunctional ion mobility spectrometry |
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| CN103163013B (en) | 2015-04-08 |
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Granted publication date: 20150408 Termination date: 20181215 |