CN108459122A - A kind of secondary parsing thermal desorption device of binary channels - Google Patents
A kind of secondary parsing thermal desorption device of binary channels Download PDFInfo
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- CN108459122A CN108459122A CN201810489912.8A CN201810489912A CN108459122A CN 108459122 A CN108459122 A CN 108459122A CN 201810489912 A CN201810489912 A CN 201810489912A CN 108459122 A CN108459122 A CN 108459122A
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- way valve
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- 238000003795 desorption Methods 0.000 title claims abstract description 62
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000001467 acupuncture Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 22
- 239000005416 organic matter Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
- G01N2030/201—Injection using a sampling valve multiport valves, i.e. having more than two ports
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to detection technique fields,Especially a kind of secondary parsing thermal desorption device of binary channels,No. 3 air inlets of the first six-way valve and the second six-way valve are communicated with GC injection ports by tracheae,No. 1 air inlet of the first six-way valve is communicated with the secondary collecting trap of the first low temperature by tracheae,And first the secondary collecting trap of low temperature be also connected on No. 4 air inlets of the first six-way valve,No. 1 air inlet of the second six-way valve is communicated with the secondary collecting trap of the second low temperature by tracheae,And second the secondary collecting trap of low temperature be also connected on No. 4 air inlets of the first six-way valve,No. 5 air inlets of the first six-way valve are communicated with the first desorption tube by tracheae,No. 5 air inlets of the second six-way valve are communicated with the second desorption tube by tracheae,And first desorption tube and the second desorption tube side tracheae on be both provided with pressure control module,First solenoid valve and gas flowmeter.The present invention realizes the secondary thermal desorption of full-automatic binary channels.
Description
Technical field
The present invention relates to detection technique field more particularly to a kind of secondary parsing thermal desorption devices of binary channels.
Background technology
Gas-chromatography or gas chromatography-mass spectrography（GC、GC-MS）It is current most widely used for volatility
With a kind of detection means of semi-volatile compounds.But some Trace Organic Compounds are due to complicated component in air, and content is too
It is low, conventional gas chromatography detection can not be used.Secondary parsing thermal desorption device currently produced on the market, is all single-pass
Road, this is the sample feeding equipment of gas chromatograph or gas chromatograph-mass spectrometer combined instrument, for detecting TVOC in environment
(total volatile organism）, VOCs (the poisonous and harmful monitoring organic matters of volatility）, according to examination criteria analyze sample when
Between it is long, about 1 hour or so.Limit detection efficiency.For this purpose, we have proposed a kind of secondary parsing thermal desorption dresses of binary channels
It sets.
Invention content
The purpose of the present invention is to solve disadvantages existing in the prior art, and the secondary parsing of a kind of binary channels proposed
Thermal desorption device.
To achieve the goals above, present invention employs following technical solutions：
A kind of secondary parsing thermal desorption device of binary channels, including central controller, the first six-way valve and the second six-way valve are designed,
And first No. 2 air inlets of six-way valve and the second six-way valve air inlet, the first six-way valve and second are communicated with by tracheae
No. 3 air inlets of six-way valve are communicated with GC injection ports by tracheae, and GC injection ports be connected in gas chromatograph by tracheae or
On gas chromatograph-mass spectrometer combined instrument, No. 1 air inlet of first six-way valve is communicated with that the first low temperature is secondary to catch by tracheae
Collect trap, and the secondary collecting trap of the first low temperature is also connected on No. 4 air inlets of the first six-way valve, No. 1 of second six-way valve
Air inlet is communicated with the secondary collecting trap of the second low temperature by tracheae, and the secondary collecting trap of the second low temperature is also connected in the first six-way valve
No. 4 air inlets on, No. 5 air inlets of first six-way valve are communicated with the first desorption tube by tracheae, and the described 2nd 6 is logical
No. 5 air inlets of valve are communicated with the second desorption tube by tracheae, and on the tracheae of the first desorption tube and the second desorption tube side
It is both provided with pressure control module, the first solenoid valve and gas flowmeter, the 6 of first six-way valve and the second six-way valve
Number air inlet is communicated with emptying outlet by tracheae, and second solenoid valve is additionally provided on the tracheae, the second solenoid valve with
It is also connected in the first desorption tube and the second desorption tube by tracheae on tracheae between emptying outlet, and is also set on the tracheae
It is equipped with third solenoid valve, is also communicated on the tracheae between the second solenoid valve and the first six-way valve and the second six-way valve
4th solenoid valve, and the 4th solenoid valve other end by tracheae be connected on the 4th solenoid valve, the pressure control module and
Gas flowmeter is electrically connected at central controller, and central controller is electrically connected with power supply module, display module, storage
Module, temperature control modules and mechanical action module, and temperature control modules setting in the secondary collecting trap of the first low temperature and
In the secondary collecting trap of second low temperature, the mechanical action module is electrically connected at the first six-way valve and the second six-way valve.
Preferably, first desorption tube and the second desorption tube are made of automatic 24 sample discs and control system, from
Moving 24 sample discs can automatically test from No. 1 position to 24 sample positions, and heat block is under heating motor control when purging
It is heated close to the first desorption tube and the second desorption tube, OC-LOCK seal cap experts is penetrated by acupuncture treatment motor under test mode
At gas circuit access, test completion acupuncture treatment motor, which exits, returns to beginning position.
Preferably, first six-way valve and the second six-way valve are specially air way switch valve, and by sample introduction motor into
Row switching.
Preferably, in the secondary collecting trap of first low temperature and the secondary collecting trap of the second low temperature in secondary catch is installed
Collector.
The secondary parsing thermal desorption device of a kind of binary channels proposed by the present invention, advantageous effect are：The secondary solution of the binary channels
Analysis thermal desorption device enables to detection efficiency to double, and the cost of input is for increasing less than 1/4, gas chromatograph or gas phase
Chromatography-mass spectroscopy instrument combined instrument only increases an injection port and detector, and host and operation control system are increased without, laboratory
Take up an area and other configuration equipment be without in increase, effectively saves equipment cost and artificial use cost, and improve efficiency,
Realize the secondary thermal desorption of full-automatic binary channels.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the secondary parsing thermal desorption device of binary channels proposed by the present invention.
Fig. 2 is a kind of system block diagram of the secondary parsing thermal desorption device of binary channels proposed by the present invention.
In figure：1 first six-way valve, 2 second six-way valves, 3 GC injection ports, the secondary collecting trap of 4 first low temperature, 5 second low temperature
Secondary collecting trap, 6 first desorption tubes, 7 second desorption tubes, 8 pressure control modules, 9 first solenoid valves, 10 gas flowmeters, 11
4th solenoid valve, 12 third solenoid valves, 13 second solenoid valves, 14 emptying outlets, 15 air inlets.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-2, the secondary parsing thermal desorption device of a kind of binary channels, including central controller, the first six-way valve 1 and
Second six-way valve 2, and No. 2 air inlets of the first six-way valve 1 and the second six-way valve 2 are communicated with air inlet 15 by tracheae, the
No. 3 air inlets of one six-way valve 1 and the second six-way valve 2 are communicated with GC injection ports 3 by tracheae, and GC injection ports 3 pass through gas
Pipe is connected on gas chromatograph or gas chromatograph-mass spectrometer combined instrument, and No. 1 air inlet of the first six-way valve 1 is connected by tracheae
It is connected with the secondary collecting trap 4 of the first low temperature, and the secondary collecting trap of the first low temperature 4 is also connected to No. 4 air inlets in the first six-way valve 1
On, No. 1 air inlet of the second six-way valve 2 is communicated with the secondary collecting trap 5 of the second low temperature, and the secondary trapping of the second low temperature by tracheae
Trap 5 is also connected on No. 4 air inlets of the first six-way valve 2, and No. 5 air inlets of the first six-way valve 1 are communicated with first by tracheae
No. 5 air inlets of desorption tube 6, the second six-way valve 2 are communicated with the second desorption tube 7, and the first desorption tube 6 and second by tracheae
It is logical that pressure control module 8, the first solenoid valve 9 and gas flowmeter the 10, the 1st are both provided on the tracheae of 7 side of desorption tube
No. 6 air inlets of valve 1 and the second six-way valve 2 are communicated with emptying outlet 14 by tracheae, and are additionally provided with second on the tracheae
Solenoid valve 13, second solenoid valve 13 and emptying outlet 14 between tracheae on also by tracheae be connected to the first desorption tube 6 and
In second desorption tube 7, and third solenoid valve 12 is additionally provided on the tracheae, second solenoid valve 13 and the first six-way valve 1 and
The 4th solenoid valve 11 is also communicated on tracheae between two six-way valves 2, and 11 other end of the 4th solenoid valve is connected to by tracheae
On the 4th solenoid valve 11, pressure control module 8 and gas flowmeter 10 are electrically connected at central controller, and center control
Device processed is electrically connected with power supply module, display module, storage module, temperature control modules and mechanical action module, and temperature
In the secondary collecting trap of secondary 4 and second low temperature of collecting trap of the first low temperature 5, mechanical action module electrically connects for control module setting
It is connected to the first six-way valve 1 and the second six-way valve 2.
First desorption tube 6 and the second desorption tube 7 are made of automatic 24 sample discs and control system, automatic 24 samples
Disk can automatically be tested from No. 1 position to 24 sample positions, when purging heat block under heating motor control close to the first solution
Suction pipe 6 and the second desorption tube 7 heat, and penetrate OC-LOCK seal cap experts by acupuncture treatment motor under test mode leads at gas circuit
Road, test completion acupuncture treatment motor, which exits, returns to beginning position, and the first desorption tube 6 and the second desorption tube 7 are incited somebody to action according to examination criteria
The air of certain volume is loaded in the secondary thermal desorption of binary channels point by being equipped with the enrichment of particular fillers sampling pipe, sampling pipe
Analysis.
First six-way valve 1 and the second six-way valve 2 are specially air way switch valve, and are switched over by sample introduction motor.
It is interior in the secondary collecting trap 5 of secondary 4 and second low temperature of collecting trap of first low temperature that secondary trap tube is installed, it purges
When, the first desorption tube 6 and the second desorption tube 7 are heated, the detection organic matter evaporated is brought into low temperature two by carrier gas nitrogen
The trapping of secondary trap tube, when sweat are the heating that is rapidly heated, will the secondary trap tube of low temperature trap in the volatile organic compounds that trap.
When work, the first desorption tube 6 and the second desorption tube 7 according to the flow of program setting, pressure, at a temperature of,
Determine at temperature the organic matter adsorbed in sample cell, by high-temperature heating, volatile organic matter from the first desorption tube 6 and the
It is parsed in two desorption tubes, 7 filler, becomes gas, the volatile organic matter gas parsed is blown by high purity inert gas
Sweep to secondary enrichment in -40 degree secondary secondary collecting traps 5 of 4 and second low temperature of collecting trap of the first low temperature, -40 the first low temperature two of degree
By the system of being rapidly heated, heat up fast 240 degrees seconds, and quickly low temperature is caught for secondary collecting trap 4 and the secondary collecting trap 5 of the second low temperature
Collector is raised to about 300 degree from -40 degree, to which volatile organic matter is flashed as gaseous state again, passes through the first six-way valve 1 and the
Two six-way valves 2 are quickly switched into GC injection ports 3, and secondary 4 and second low temperature two of collecting trap of the first low temperature is carried by GC injection ports 3
Treated that gas enters detection gas chromatograph or gas chromatograph-mass spectrometer combined instrument for secondary trap tube in secondary collecting trap 5
Middle analysis content and composition.
More than, it is merely preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any
Those familiar with the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its invents
Design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of secondary parsing thermal desorption device of binary channels, which is characterized in that including central controller, the first six-way valve（1）With
And second six-way valve（2）, and the first six-way valve（1）And second six-way valve（2）No. 2 air inlets air inlet is communicated with by tracheae
Mouthful（15）, the first six-way valve（1）And second six-way valve（2）No. 3 air inlets GC injection ports are communicated with by tracheae（3）, and
GC injection ports（3）By tracheae connection on gas chromatograph or gas chromatograph-mass spectrometer combined instrument, first six-way valve
（1）No. 1 air inlet the secondary collecting trap of the first low temperature is communicated with by tracheae（4）, and the secondary collecting trap of the first low temperature（4）Also connect
Lead in the first six-way valve（1）No. 4 air inlets on, second six-way valve（2）No. 1 air inlet be communicated with second by tracheae
The secondary collecting trap of low temperature（5）, and the secondary collecting trap of the second low temperature（5）It is also connected in the first six-way valve（2）No. 4 air inlets on,
First six-way valve（1）No. 5 air inlets the first desorption tube is communicated with by tracheae（6）, second six-way valve（2）5
Number air inlet is communicated with the second desorption tube by tracheae（7）, and the first desorption tube（6）And second desorption tube（7）The gas of side
Pressure control module is both provided on pipe（8）, the first solenoid valve（9）And gas flowmeter（10）, first six-way valve（1）
And second six-way valve（2）No. 6 air inlets by tracheae be communicated with emptying outlet（14）, and it is additionally provided with second on the tracheae
Solenoid valve（13）, the second solenoid valve（13）It is exported with emptying（14）Between tracheae on the first solution is also connected to by tracheae
Suction pipe（6）And second desorption tube（7）On, and third solenoid valve is additionally provided on the tracheae（12）, the second solenoid valve
（13）With the first six-way valve（1）And second six-way valve（2）Between tracheae on be also communicated with the 4th solenoid valve（11）, and the
Four solenoid valves（11）The other end is connected to by tracheae in the 4th solenoid valve（11）On, the pressure control module（8）And gas
Flowmeter（10）It is electrically connected at central controller, and central controller is electrically connected with power supply module, display module, storage
Module, temperature control modules and mechanical action module, and temperature control modules are arranged in the secondary collecting trap of the first low temperature（4）With
And the second secondary collecting trap of low temperature（5）Interior, the mechanical action module is electrically connected at the first six-way valve（1）And the two or six is logical
Valve（2）.
2. the secondary parsing thermal desorption device of a kind of binary channels according to claim 1, which is characterized in that first desorption
Pipe（6）And second desorption tube（7）It is made of automatic 24 sample discs and control system, automatic 24 sample discs can be from No. 1
Position is tested automatically to 24 sample positions, when purging heat block under heating motor control close to the first desorption tube（6）And
Second desorption tube（7）Heating penetrates OC-LOCK seal caps expert into gas circuit access, test under test mode by acupuncture treatment motor
Completion acupuncture treatment motor, which exits, returns to beginning position.
3. the secondary parsing thermal desorption device of a kind of binary channels according to claim 1, which is characterized in that the described 1st is logical
Valve（1）And second six-way valve（2）Specially air way switch valve, and switched over by sample introduction motor.
4. the secondary parsing thermal desorption device of a kind of binary channels according to claim 1, which is characterized in that first low temperature
Secondary collecting trap（4）And the second secondary collecting trap of low temperature（5）It is interior in secondary trap tube is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810489912.8A CN108459122A (en) | 2018-05-21 | 2018-05-21 | A kind of secondary parsing thermal desorption device of binary channels |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810489912.8A CN108459122A (en) | 2018-05-21 | 2018-05-21 | A kind of secondary parsing thermal desorption device of binary channels |
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| CN108459122A true CN108459122A (en) | 2018-08-28 |
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| CN201810489912.8A Pending CN108459122A (en) | 2018-05-21 | 2018-05-21 | A kind of secondary parsing thermal desorption device of binary channels |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406692A (en) * | 2018-12-28 | 2019-03-01 | 苏州天蓝分析仪器有限公司 | Continuous quadratic enrichment resolver that is a kind of multistage and running in turn |
| CN111044649A (en) * | 2020-03-18 | 2020-04-21 | 山东海慧环境科技有限公司 | Gas analysis device |
| CN111220742A (en) * | 2020-03-23 | 2020-06-02 | 中国工程物理研究院材料研究所 | Micro sample gas automatic sampling system for gas chromatography |
| CN112666296A (en) * | 2021-03-16 | 2021-04-16 | 常州磐宇仪器有限公司 | Dual-channel thermal desorption sampling system and method for chromatograph detection |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5492555A (en) * | 1994-06-09 | 1996-02-20 | Lovelace Biomedical & Environmental Research Institute, Inc. | Automated two-dimensional interface for capillary gas chromatography |
| JPH11248694A (en) * | 1998-02-26 | 1999-09-17 | Mitsubishi Chemical Corp | Gas chromatograph and gas chromatography |
| US20060156792A1 (en) * | 2004-10-12 | 2006-07-20 | Yongdong Wang | Multi-dimensional liquid chromatography separation system and method |
| KR100654950B1 (en) * | 2005-11-08 | 2006-12-06 | 주식회사 케이엔알 | An automated absorbing-desorbing apparatus for vocs with multichannels |
| CN202033333U (en) * | 2011-03-10 | 2011-11-09 | 中国科学院广州地球化学研究所 | Gas-phase adsorption-desorption device having function of automatically analyzing injected samples |
| CN102235946A (en) * | 2010-04-28 | 2011-11-09 | 中国科学院大连化学物理研究所 | Purging and trapping thermal desorption device |
| CN203772819U (en) * | 2014-03-20 | 2014-08-13 | 常州仪盟核芯仪器有限公司 | Universal gas chromatography measurement device for gasoline hydrocarbons |
| US20150047442A1 (en) * | 2013-08-14 | 2015-02-19 | Shimadzu Corporation | Gas sample introduction device |
| CN105527358A (en) * | 2014-09-30 | 2016-04-27 | 北京普析通用仪器有限责任公司 | Sample introduction device, thermal weight loss-gas chromatography system and thermal weight loss-gas chromatography-mass spectrometry system |
| CN205670139U (en) * | 2016-05-30 | 2016-11-02 | 李勘 | Multi-channel electronic refrigeration two grades is freezing collects VOCs in-line analyzers |
| CN206627483U (en) * | 2017-04-13 | 2017-11-10 | 李勘 | Multichannel sample port multichannel VOC in-line analyzer |
-
2018
- 2018-05-21 CN CN201810489912.8A patent/CN108459122A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5492555A (en) * | 1994-06-09 | 1996-02-20 | Lovelace Biomedical & Environmental Research Institute, Inc. | Automated two-dimensional interface for capillary gas chromatography |
| JPH11248694A (en) * | 1998-02-26 | 1999-09-17 | Mitsubishi Chemical Corp | Gas chromatograph and gas chromatography |
| US20060156792A1 (en) * | 2004-10-12 | 2006-07-20 | Yongdong Wang | Multi-dimensional liquid chromatography separation system and method |
| KR100654950B1 (en) * | 2005-11-08 | 2006-12-06 | 주식회사 케이엔알 | An automated absorbing-desorbing apparatus for vocs with multichannels |
| CN102235946A (en) * | 2010-04-28 | 2011-11-09 | 中国科学院大连化学物理研究所 | Purging and trapping thermal desorption device |
| CN202033333U (en) * | 2011-03-10 | 2011-11-09 | 中国科学院广州地球化学研究所 | Gas-phase adsorption-desorption device having function of automatically analyzing injected samples |
| US20150047442A1 (en) * | 2013-08-14 | 2015-02-19 | Shimadzu Corporation | Gas sample introduction device |
| CN203772819U (en) * | 2014-03-20 | 2014-08-13 | 常州仪盟核芯仪器有限公司 | Universal gas chromatography measurement device for gasoline hydrocarbons |
| CN105527358A (en) * | 2014-09-30 | 2016-04-27 | 北京普析通用仪器有限责任公司 | Sample introduction device, thermal weight loss-gas chromatography system and thermal weight loss-gas chromatography-mass spectrometry system |
| CN205670139U (en) * | 2016-05-30 | 2016-11-02 | 李勘 | Multi-channel electronic refrigeration two grades is freezing collects VOCs in-line analyzers |
| CN206627483U (en) * | 2017-04-13 | 2017-11-10 | 李勘 | Multichannel sample port multichannel VOC in-line analyzer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406692A (en) * | 2018-12-28 | 2019-03-01 | 苏州天蓝分析仪器有限公司 | Continuous quadratic enrichment resolver that is a kind of multistage and running in turn |
| CN111044649A (en) * | 2020-03-18 | 2020-04-21 | 山东海慧环境科技有限公司 | Gas analysis device |
| CN111220742A (en) * | 2020-03-23 | 2020-06-02 | 中国工程物理研究院材料研究所 | Micro sample gas automatic sampling system for gas chromatography |
| CN112666296A (en) * | 2021-03-16 | 2021-04-16 | 常州磐宇仪器有限公司 | Dual-channel thermal desorption sampling system and method for chromatograph detection |
| CN112666296B (en) * | 2021-03-16 | 2021-06-29 | 常州磐宇仪器有限公司 | Dual-channel thermal desorption sampling system and method for chromatograph detection |
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