WO2014184947A1 - Electron capture detector - Google Patents
Electron capture detector Download PDFInfo
- Publication number
- WO2014184947A1 WO2014184947A1 PCT/JP2013/063775 JP2013063775W WO2014184947A1 WO 2014184947 A1 WO2014184947 A1 WO 2014184947A1 JP 2013063775 W JP2013063775 W JP 2013063775W WO 2014184947 A1 WO2014184947 A1 WO 2014184947A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell chamber
- gas
- makeup gas
- makeup
- supply path
- Prior art date
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Classifications
-
- 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
- G01N30/62—Detectors specially adapted therefor
- G01N30/64—Electrical detectors
- G01N30/70—Electron capture detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
Definitions
- the detector main body having the cell chamber may be formed with an inlet pipe constituting a part of the makeup gas supply path and an outlet pipe constituting a part of the exhaust path.
- the outlet pipe may be formed with an inner diameter smaller than the inlet pipe, or a connecting pipe having an inner diameter smaller than the inlet pipe may be connected to the outlet pipe or inserted into the outlet pipe. Good.
- a makeup gas supply path 12 for supplying makeup gas is communicated.
- a part of the makeup gas supply path 12 is configured by an inlet pipe 121 formed so as to extend from the detector main body 1 in a radial direction (a direction orthogonal to the axis L).
- a makeup gas supply source (not shown) is connected to the inlet pipe 121.
- the makeup gas supply path 12 communicates with the cell chamber 11 and can supply makeup gas into the cell chamber 11 from the makeup gas supply path 12.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
2 カラム
11 セル室
12 メイクアップガス供給路
13 放射線源
14 コレクタ電極
15 排気路
121 入口管
151 出口管
152 接続管
153 金属フィルタ
154 バルブ DESCRIPTION OF
Claims (5)
- セル室内に試料ガス及びメイクアップガスを供給し、前記セル室内の放射線源から放射線を照射することによりメイクアップガスから放出される電子を捕獲して検出を行う電子捕獲検出器であって、
前記セル室内にメイクアップガスを供給するメイクアップガス供給路と、
前記セル室内のガスを排気する排気路とを備え、
前記メイクアップガス供給路から前記セル室内にメイクアップガスを供給しているときに、前記セル室内のガスが加圧状態となるように構成されていることを特徴とする電子捕獲検出器。 An electron capture detector for supplying a sample gas and a makeup gas into a cell chamber and capturing and detecting electrons emitted from the makeup gas by irradiating radiation from a radiation source in the cell chamber,
A makeup gas supply path for supplying makeup gas into the cell chamber;
An exhaust path for exhausting the gas in the cell chamber,
An electron capture detector, wherein the gas in the cell chamber is in a pressurized state when makeup gas is being supplied into the cell chamber from the makeup gas supply path. - 前記排気路が、前記メイクアップガス供給路よりも小さい断面積で形成されることにより、前記メイクアップガス供給路から前記セル室内にメイクアップガスを供給しているときに、前記セル室内のガスが加圧状態となることを特徴とする請求項1に記載の電子捕獲検出器。 When the exhaust path is formed with a smaller cross-sectional area than the makeup gas supply path, the makeup gas is supplied from the makeup gas supply path into the cell chamber. The electron capture detector according to claim 1, wherein is in a pressurized state.
- 前記排気路内に、ガスの流れに対する抵抗となる抵抗部材が配置されることにより、前記メイクアップガス供給路から前記セル室内にメイクアップガスを供給しているときに、前記セル室内のガスが加圧状態となることを特徴とする請求項1に記載の電子捕獲検出器。 By disposing a resistance member that is resistant to gas flow in the exhaust path, when makeup gas is being supplied from the makeup gas supply path into the cell chamber, the gas in the cell chamber The electron capture detector according to claim 1, wherein the electron capture detector is in a pressurized state.
- 前記メイクアップガス供給路から前記セル室内にメイクアップガスを供給しているときに、前記セル室内のガスのゲージ圧が5kPa以上となるように構成されていることを特徴とする請求項1~3のいずれかに記載の電子捕獲検出器。 The gas pressure in the cell chamber is configured to be 5 kPa or more when makeup gas is supplied into the cell chamber from the makeup gas supply path. 4. The electron capture detector according to any one of 3 above.
- 前記メイクアップガス供給路から前記セル室内に3mL/min以上で連続的にメイクアップガスを供給しているときに、前記セル室内のガスのゲージ圧が5kPa以上となるように構成されていることを特徴とする請求項4に記載の電子捕獲検出器。 When the makeup gas is continuously supplied from the makeup gas supply path into the cell chamber at 3 mL / min or more, the gauge pressure of the gas in the cell chamber is configured to be 5 kPa or more. The electron capture detector according to claim 4.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2013/063775 WO2014184947A1 (en) | 2013-05-17 | 2013-05-17 | Electron capture detector |
CN201380076658.4A CN105229457B (en) | 2013-05-17 | 2013-05-17 | electron capture detector |
JP2015516855A JP5962854B2 (en) | 2013-05-17 | 2013-05-17 | Electron capture detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2013/063775 WO2014184947A1 (en) | 2013-05-17 | 2013-05-17 | Electron capture detector |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014184947A1 true WO2014184947A1 (en) | 2014-11-20 |
Family
ID=51897952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/063775 WO2014184947A1 (en) | 2013-05-17 | 2013-05-17 | Electron capture detector |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP5962854B2 (en) |
CN (1) | CN105229457B (en) |
WO (1) | WO2014184947A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105891396A (en) * | 2015-01-02 | 2016-08-24 | 山东鲁南瑞虹化工仪器有限公司 | Electric fishing detector lining device of gas chromatograph |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019023581A (en) * | 2017-07-24 | 2019-02-14 | 株式会社島津製作所 | Method for cleaning detection cell of electron capture detector, analytical method, detection cell of electron capture detector, electron capture detector and analyzer |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3143800U (en) * | 2008-05-26 | 2008-08-07 | 株式会社島津製作所 | Electron capture detector |
JP2008232783A (en) * | 2007-03-20 | 2008-10-02 | Shimadzu Corp | Electron capture detector |
Family Cites Families (17)
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JP2810804B2 (en) * | 1991-03-30 | 1998-10-15 | 日本電子株式会社 | Electron capture detector |
CH688110A5 (en) * | 1994-01-03 | 1997-05-15 | Valco Instr Co Inc | Method and a detector for analyzing a gas sample |
US5760291A (en) * | 1996-09-03 | 1998-06-02 | Hewlett-Packard Co. | Method and apparatus for mixing column effluent and make-up gas in an electron capture detector |
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KR101285564B1 (en) * | 2011-05-24 | 2013-07-12 | 황인범 | Electron capture detector using auxillary gas |
-
2013
- 2013-05-17 JP JP2015516855A patent/JP5962854B2/en not_active Expired - Fee Related
- 2013-05-17 CN CN201380076658.4A patent/CN105229457B/en active Active
- 2013-05-17 WO PCT/JP2013/063775 patent/WO2014184947A1/en active Application Filing
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JP2008232783A (en) * | 2007-03-20 | 2008-10-02 | Shimadzu Corp | Electron capture detector |
JP3143800U (en) * | 2008-05-26 | 2008-08-07 | 株式会社島津製作所 | Electron capture detector |
Non-Patent Citations (2)
Title |
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R. J. MAGGS ET AL.: "The Electron Capture Detector - A New Mode of Operation", ANALYTICAL CHEMISTRY, vol. 43, no. 14, December 1971 (1971-12-01), pages 1966 - 1971 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105891396A (en) * | 2015-01-02 | 2016-08-24 | 山东鲁南瑞虹化工仪器有限公司 | Electric fishing detector lining device of gas chromatograph |
Also Published As
Publication number | Publication date |
---|---|
CN105229457B (en) | 2018-03-27 |
JP5962854B2 (en) | 2016-08-03 |
CN105229457A (en) | 2016-01-06 |
JPWO2014184947A1 (en) | 2017-02-23 |
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