CN101294933B - Surface gas flow purging thermal desorption sampling device - Google Patents
Surface gas flow purging thermal desorption sampling device Download PDFInfo
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- CN101294933B CN101294933B CN200710011082XA CN200710011082A CN101294933B CN 101294933 B CN101294933 B CN 101294933B CN 200710011082X A CN200710011082X A CN 200710011082XA CN 200710011082 A CN200710011082 A CN 200710011082A CN 101294933 B CN101294933 B CN 101294933B
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Abstract
The invention relates to a thermal desorption sampling device used for surface airflow purging which is characterized by comprising a fixed control device (1) used for controlling whether a sample attachment sheet is clamped tightly, a surface airflow purging device (2) and a clipping seam which is formed between the fixed control device (1) and the surface airflow purging device (2) and is used for inserting a sample channel (3) of the sample attachment sheet; the fixed control device (1) and the surface airflow purging device (2) are connected with each other fixedly or movably; the sampling device provided by the invention can meet the sampling requirement of solid and liquid samples, can realize automatic operation, complete the steps of heating, sampling and analysis needed by the sampling in short time and meet the need that an ion mobility spectrometer carries out fast and on-spot analysis detection; the device provided by the invention has fastness, effectiveness, reasonable structure and wide application, and can provide gas samples for various gas analyzers.
Description
Technical field
The present invention relates to the sampling device of ionic migration spectrometer, specifically, belong to a kind of in the gas analysis instrument and transfer solid, fluid sample to gas and the device of sample introduction.
Background technology
Ion mobility spectrometry (Ion Mobility Spectrometry; IMS) a kind of separation detection technology that occurs the technological seventies in last century abroad; The eighties this technology being applied to on-the site analysis detects; Its ultimate principle is: in atmosphere or migration gas, tested gaseous sample ionization is formed ion, in extra electric field, drift about then.Because the mobility of different samples is different, separately, the heavy generally speaking light molecule of molecular proportion loses time the heterogeneity in the sample in migration tube.Like this, just can know the composition of sample according to the transit time that measures.
Usually, it only is fit to gaseous sample is directly analyzed, and can not directly analyze solid and fluid sample.In the real work; Many solids and fluid sample need adopt more that ionic migration spectrometer carries out fast, on-the site analysis detects; Usually adopt liquid head space gas (airborne steam evaporates) sample introduction analysis; Solid sample then need heat the manual sample introduction analysis in back, can not be fit to the requirement of on-the-spot express-analysis.
Summary of the invention
The thermal desorption sampling device that the purpose of this invention is to provide a kind of surface gas flow purging.
A kind of thermal desorption sampling device of surface gas flow purging; It is characterized in that: the thermal desorption sampling device of described surface gas flow purging comprises the fixedly control device (1) whether a control sample attachment flaps clamps; Surface gas flow purging device (2), the crack that forms between the two are the sample cell (3) that is used to plug a sample attachment flaps; Fixedly adopt fixed or movable connection between control device (1) and the surface gas flow purging device (2).
Described surface gas flow purging device (2) comprises; Body (201) is analysed in pyrolysis, and gas passage one (202), gas passage two (203), heating rod (204), temperature control equipment (205), one are analysed the surface gas flow purging pyrolysis that forms between sunk part and the sample attachment flaps of body (201) by pyrolysis and analysed pond (206);
Gas passage one (202), gas passage two (203) lay respectively at the internal fixation connection that body (201) is analysed in pyrolysis; Heating rod (204) is horizontal insert in pyrolysis analyse body (201) inside and with its tight connection, temperature control equipment (205) is fixed or movable to be installed in pyrolysis and to analyse on the body (201).
Described fixedly control device (1) comprises solenoid valve iron core (101), electromagnetic valve body (102), static controller (103); Solenoid valve iron core (101) is installed in the inside of electromagnetic valve body (102) with movable connection method, and electromagnetic valve body (102) is fixedly mounted on the static controller (103), the insertion of controlling the sample attachment flaps through moving of its solenoid valve iron core (101), fixing and take out;
Described gas passage one (202) is an inlet channel, and gas passage two (203) is an outlet passageway.
Described gas passage one (202) also can be outlet passageway, and gas passage two (203) is an inlet channel.
The heating and temperature control of described heating rod (204) and temperature control equipment (205) is within 100-300 ℃.
After the sample attachment flaps is inserted sample cell; The controller that is fixed is fixed on the pyrolysis of surface gas flow purging device and analyses on the pond; Analysed the body heating by pyrolysis and resolve, the sample gas of parsing is taken out of by the clean hot air of the draft tube of flowing through, escape pipe, delivers to instrument and analyzes continuously.
Advantage of the present invention:
By sampling device provided by the invention; Can satisfy the sample introduction requirement of solid, fluid sample; But the step of the required heating of sample introduction, sample introduction, analysis is accomplished in automation mechanized operation at short notice, satisfies the demand that ionic migration spectrometer carries out fast, on-the site analysis detects.Sampling device provided by the invention, effectively, rational in infrastructure, applicability is wide, can be all gases analytical instrument gaseous sample is provided fast.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Fig. 1 is a cross-sectional view of the present invention.
Embodiment
See also Fig. 1, be cross-sectional view of the present invention.Sampling device of the present invention is made up of sample cell, static controller, surface gas flow purging device.Wherein:
Sample cell can be processed by sheet metal (being such as but not limited to: iron plate, steel plate, copper coin, aluminium sheet etc.), and the inter-alveolar distance of both sides panel is the 1-30 millimeter; The both sides of this sample cell, a side are the static controller of sample attachment flaps, control the insertion of sample attachment flaps, fixing and taking-up through moving of its solenoid valve iron core; Opposite side is the surface gas flow purging device, comprises that the pond is analysed in an inlet channel, surface gas flow purging pyrolysis, body, heating rod, temperature control equipment are analysed in outlet passageway, a pyrolysis.
After the sample attachment flaps is inserted sample cell; The controller that is fixed is fixed on pyrolysis and analyses on the pond, analysed body heating parsing by pyrolysis; The sample gas of resolving is taken out of by the clean hot air of the draft tube of flowing through, escape pipe; Connect an analytical instrument (not shown),, analyze continuously through instrument like known ionic migration spectrometer, gas analyzer etc.
According to sample, general heating and temperature control is between 100-300 ℃.The thickness of sample attachment flaps is the 1-30 millimeter, and its material is a gas permeable material like sponge, nonwoven fabrics, filter paper, filter membrane or cloth.
Embodiment 1
A kind of thermal desorption sampling device of surface gas flow purging; It is characterized in that: the thermal desorption sampling device of described surface gas flow purging comprises the fixedly control device (1) whether a control sample attachment flaps clamps; Surface gas flow purging device (2), the crack that forms between the two are the sample cell (3) that is used to plug a sample attachment flaps; Fixedly adopt between control device (1) and the surface gas flow purging device (2) and be fixedly connected.
Described surface gas flow purging device (2) comprises; Body (201) is analysed in pyrolysis, and gas passage one (202), gas passage two (203), heating rod (204), temperature control equipment (205), one are analysed the surface gas flow purging pyrolysis that forms between sunk part and the sample attachment flaps of body (201) by pyrolysis and analysed pond (206);
Gas passage one (202), gas passage two (203) lay respectively at the internal fixation connection that body (201) is analysed in pyrolysis; Heating rod (204) is horizontal to insert in that the inside of body (201) is analysed in pyrolysis and in its tight connection, and temperature control equipment (205) is fixed or movable to be installed in pyrolysis and to analyse on the body (201).
Described fixedly control device (1) comprises solenoid valve iron core (101), electromagnetic valve body (102), static controller (103); Solenoid valve iron core (101) is installed in the inside of electromagnetic valve body (102) with movable connection method, and electromagnetic valve body (102) is fixedly mounted on the static controller (103).
Described gas passage one (202) is an inlet channel, and gas passage two (203) is an outlet passageway.
It is on 1 millimeter the filter paper sample attachment flaps that the TNT solid sample is spread upon thickness; Be inserted into the sample attachment flaps in the sample cell then; Static controller promotion solenoid valve iron core is fixedly clamped the sample attachment flaps and analyses on the pond in pyrolysis; Pyrolysis is analysed the pond temperature and is analysed body, heating rod, temperature control equipment control temperature to 300 ℃ by pyrolysis, is blown into pure air to draft tube simultaneously, and this air that is blown into is through the sample attachment flaps; From escape pipe the steam sample of TNT is delivered to the ionic migration spectrometer and to be analyzed, obtain the signal and the analysis result of TNT sample.
Embodiment 2
A kind of thermal desorption sampling device of surface gas flow purging; It is characterized in that: the thermal desorption sampling device of described surface gas flow purging comprises the fixedly control device (1) whether a control sample attachment flaps clamps; Surface gas flow purging device (2), the crack that forms between the two are the sample cell (3) that is used to plug a sample attachment flaps; Fixedly adopt between control device (1) and the surface gas flow purging device (2) and be fixedly connected.
Described surface gas flow purging device (2) comprises; Body (201) is analysed in pyrolysis, and gas passage one (202), gas passage two (203), heating rod (204), temperature control equipment (205), one are analysed the surface gas flow purging pyrolysis that forms between sunk part and the sample attachment flaps of body (201) by pyrolysis and analysed pond (206);
Gas passage one (202), gas passage two (203) lay respectively at the internal fixation connection that body (201) is analysed in pyrolysis; Heating rod (204) is horizontal to insert in that the inside of body (201) is analysed in pyrolysis and in its tight connection, and temperature control equipment (205) is fixed or movable to be installed in pyrolysis and to analyse on the body (201).
Described fixedly control device (1) comprises solenoid valve iron core (101), electromagnetic valve body (102), static controller (103); Solenoid valve iron core (101) is installed in the inside of electromagnetic valve body (102) with movable connection method, and electromagnetic valve body (102) is fixedly mounted on the static controller (103).
Described gas passage one (202) is an inlet channel, and gas passage two (203) is an outlet passageway.
It is on 2 millimeters the filter paper sample attachment flaps that the hexogen solid sample is spread upon thickness; Be inserted into the sample attachment flaps in the sample cell then; Static controller promotion solenoid valve iron core is fixedly clamped the sample attachment flaps and analyses on the pond in pyrolysis; Pyrolysis is analysed the pond temperature and is analysed body, heating rod, temperature control equipment control temperature to 150 ℃ etc. by pyrolysis, is blown into pure air to draft tube simultaneously, and this air that is blown into is through the sample attachment flaps; From escape pipe the steam sample of hexogen is delivered to the ionic migration spectrometer and to be analyzed, obtain the signal and the analysis result of hexogen sample.
A kind of thermal desorption sampling device of surface gas flow purging; It is characterized in that: the thermal desorption sampling device of described surface gas flow purging comprises the fixedly control device (1) whether a control sample attachment flaps clamps; Surface gas flow purging device (2), the crack that forms between the two are the sample cell (3) that is used to plug a sample attachment flaps; Fixedly adopt between control device (1) and the surface gas flow purging device (2) and flexibly connect.
Described surface gas flow purging device (2) comprises; Body (201) is analysed in pyrolysis, and gas passage one (202), gas passage two (203), heating rod (204), temperature control equipment (205), one are analysed the surface gas flow purging pyrolysis that forms between sunk part and the sample attachment flaps of body (201) by pyrolysis and analysed pond (206);
Gas passage one (202), gas passage two (203) lay respectively at the internal fixation connection that body (201) is analysed in pyrolysis; Heating rod (204) is horizontal insert in pyrolysis analyse body (201) inside and with its tight connection, temperature control equipment (205) is fixed or movable to be installed in pyrolysis and to analyse on the body (201).
Described fixedly control device (1) comprises solenoid valve iron core (101), electromagnetic valve body (102), static controller (103); Solenoid valve iron core (101) is installed in the inside of electromagnetic valve body (102) with movable connection method, and electromagnetic valve body (102) is fixedly mounted on the static controller (103).
Described gas passage one (202) is an outlet passageway, and gas passage two (203) is an inlet channel.
Benzole soln is soaked on thickness is 30 millimeters nonwoven fabrics sample attachment flaps; Be inserted into the sample attachment flaps in the sample cell then; Static controller promotion solenoid valve is fixedly clamped the sample attachment flaps and analyses on the pond in pyrolysis; Pyrolysis is analysed the pond temperature and is analysed body, heating rod, temperature control equipment control temperature to 100 ℃ by pyrolysis, is blown into pure air to draft tube simultaneously, and this air that is blown into is through the sample attachment flaps; From escape pipe the benzene vapor sample is delivered to the ionic migration spectrometer and to be analyzed, obtain the signal and the analysis result of benzene sample.
Claims (5)
1. the thermal desorption sampling device of a surface gas flow purging; It is characterized in that: the thermal desorption sampling device of described surface gas flow purging comprises the fixedly control device (1) whether a control sample attachment flaps clamps; Surface gas flow purging device (2), the crack that forms between the two are the sample cell (3) that is used to plug a sample attachment flaps; Fixedly adopt fixed or movable connection between control device (1) and the surface gas flow purging device (2);
Wherein surface gas flow purging device (2) comprises; Body (201) is analysed in pyrolysis, and gas passage one (202), gas passage two (203), heating rod (204), temperature control equipment (205), one are analysed the surface gas flow purging pyrolysis that forms between sunk part and the sample attachment flaps of body (201) by pyrolysis and analysed pond (206);
Gas passage one (202), gas passage two (203) lay respectively at the internal fixation connection that body (201) is analysed in pyrolysis; Heating rod (204) is horizontal insert in pyrolysis analyse body (201) inside and with its tight connection, temperature control equipment (205) is fixed or movable to be installed in pyrolysis and to analyse on the body (201).
2. according to the thermal desorption sampling device of the described surface gas flow purging of claim 1, it is characterized in that: described fixedly control device (1) comprises solenoid valve iron core (101), electromagnetic valve body (102), static controller (103); Solenoid valve iron core (101) is installed in the inside of electromagnetic valve body (102) with movable connection method, and electromagnetic valve body (102) is fixedly mounted on the static controller (103).
3. according to the thermal desorption sampling device of the described surface gas flow purging of claim 1, it is characterized in that: described gas passage one (202) is inlet channel, and gas passage two (203) is an outlet passageway.
4. according to the thermal desorption sampling device of the described surface gas flow purging of claim 1, it is characterized in that: described gas passage one (202) is outlet passageway, and gas passage two (203) is an inlet channel.
5. according to the thermal desorption sampling device of the described surface gas flow purging of claim 1, it is characterized in that: the heating and temperature control of described heating rod (204) and temperature control equipment (205) is within 100-300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710011082XA CN101294933B (en) | 2007-04-24 | 2007-04-24 | Surface gas flow purging thermal desorption sampling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710011082XA CN101294933B (en) | 2007-04-24 | 2007-04-24 | Surface gas flow purging thermal desorption sampling device |
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| Publication Number | Publication Date |
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| CN101294933A CN101294933A (en) | 2008-10-29 |
| CN101294933B true CN101294933B (en) | 2012-01-25 |
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| CN200710011082XA Expired - Fee Related CN101294933B (en) | 2007-04-24 | 2007-04-24 | Surface gas flow purging thermal desorption sampling device |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116762A (en) * | 2009-12-30 | 2011-07-06 | 中国科学院大连化学物理研究所 | Multi-point sampling sample injector applied to ion mobility spectrometry |
| CN102004135B (en) * | 2010-10-26 | 2013-03-27 | 中山大学 | Desorption pool and molecular imprinting stirring rod microextraction-high performance liquid chromatography online combined system |
| CN102478543A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院大连化学物理研究所 | Sample introduction apparatus for ion mobility spectrometry |
| CN102478466A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院大连化学物理研究所 | Sampling and sample introduction apparatus for aerosol |
| CN103163013B (en) * | 2011-12-15 | 2015-04-08 | 中国科学院大连化学物理研究所 | Thermal analysis and permeable membrane compound device for solid and liquid sample injection |
| CN103884771A (en) * | 2012-12-21 | 2014-06-25 | 中国科学院大连化学物理研究所 | Accurate method for detecting propofol anesthetic in blood |
| CN104111283A (en) * | 2013-04-18 | 2014-10-22 | 中国科学院大连化学物理研究所 | Method for rapidly sensitively detecting fentanyl in blood |
| CN103675158A (en) * | 2013-11-21 | 2014-03-26 | 湖北方圆环保科技有限公司 | Thermal analyzer |
| CN105548328A (en) * | 2014-10-28 | 2016-05-04 | 中国科学院大连化学物理研究所 | Detector for propofol in blood, and applications thereof |
| CN105717188B (en) * | 2014-12-05 | 2018-03-20 | 中国科学院大连化学物理研究所 | A kind of device of quick heating fluid sample |
| CN104483423B (en) | 2014-12-31 | 2016-03-09 | 同方威视技术股份有限公司 | Sample collection and thermal desorption sampling device and method and trace detection equipment |
| 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 |
| CN109425648B (en) * | 2017-08-28 | 2022-05-24 | 瑞湾科技（珠海）有限公司 | Sample analysis method and device for rapid thermal desorption sample injection |
| CN109308990A (en) * | 2018-09-25 | 2019-02-05 | 公安部第三研究所 | Sampling system for ionic migration spectrum detector |
| CN112834603B (en) * | 2019-11-22 | 2022-07-22 | 中国科学院大连化学物理研究所 | Combined efficient thermal desorption device |
Citations (2)
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| JP2003130770A (en) * | 2001-10-22 | 2003-05-08 | Mitsubishi Heavy Ind Ltd | Sample concentrating device and organic trace element detecting device |
| CN1916619A (en) * | 2005-08-19 | 2007-02-21 | 上海新漫传感技术研究发展有限公司 | Ion migration spectrometer based on sample through membrane |
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- 2007-04-24 CN CN200710011082XA patent/CN101294933B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003130770A (en) * | 2001-10-22 | 2003-05-08 | Mitsubishi Heavy Ind Ltd | Sample concentrating device and organic trace element detecting device |
| CN1916619A (en) * | 2005-08-19 | 2007-02-21 | 上海新漫传感技术研究发展有限公司 | Ion migration spectrometer based on sample through membrane |
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