DE69534005D1 - Verfahren und Vorrichtung zur Erhaltung der Empfindlichkeit eines thermionischen Ionisationsdetektors - Google Patents

Verfahren und Vorrichtung zur Erhaltung der Empfindlichkeit eines thermionischen Ionisationsdetektors

Info

Publication number
DE69534005D1
DE69534005D1 DE69534005T DE69534005T DE69534005D1 DE 69534005 D1 DE69534005 D1 DE 69534005D1 DE 69534005 T DE69534005 T DE 69534005T DE 69534005 T DE69534005 T DE 69534005T DE 69534005 D1 DE69534005 D1 DE 69534005D1
Authority
DE
Germany
Prior art keywords
thermionic
sensitivity
maintaining
ionisation detector
ionisation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69534005T
Other languages
English (en)
Other versions
DE69534005T2 (de
Inventor
Chinkai Meng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agilent Technologies Inc
Original Assignee
Agilent Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agilent Technologies Inc filed Critical Agilent Technologies Inc
Publication of DE69534005D1 publication Critical patent/DE69534005D1/de
Application granted granted Critical
Publication of DE69534005T2 publication Critical patent/DE69534005T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01N27/626—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 heat to ionise a gas
    • 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
    • G01N30/68—Flame ionisation detectors
DE69534005T 1995-01-19 1995-10-24 Verfahren und Vorrichtung zur Erhaltung der Empfindlichkeit eines thermionischen Ionisationsdetektors Expired - Fee Related DE69534005T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/375,019 US5554540A (en) 1995-01-19 1995-01-19 Method and apparatus for preserving the sensitivity of a thermionic ionization detector
US375019 1999-08-16

Publications (2)

Publication Number Publication Date
DE69534005D1 true DE69534005D1 (de) 2005-03-17
DE69534005T2 DE69534005T2 (de) 2006-04-13

Family

ID=23479156

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69534005T Expired - Fee Related DE69534005T2 (de) 1995-01-19 1995-10-24 Verfahren und Vorrichtung zur Erhaltung der Empfindlichkeit eines thermionischen Ionisationsdetektors

Country Status (4)

Country Link
US (1) US5554540A (de)
EP (1) EP0723151B1 (de)
JP (1) JPH08240580A (de)
DE (1) DE69534005T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5977376A (en) * 1997-07-18 1999-11-02 Rhone-Poulenc Agriculture Limited Herbicidal 2-benzoylcyclohexane-1,3-diones and related compounds
US20030085714A1 (en) * 2001-11-05 2003-05-08 Keyes Marion A. Mass flow control in a process gas analyzer
WO2005052546A2 (en) * 2003-11-25 2005-06-09 Sionex Corporation Mobility bases apparatus and methods using dispersion characteristics to improve analysis of a sample
US7569815B2 (en) * 2006-10-23 2009-08-04 Agilent Technologies, Inc. GC mass spectrometry interface and method
WO2014059092A1 (en) * 2012-10-10 2014-04-17 Kirk Timothy C Portable evidentiary collection system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859209A (en) * 1973-08-14 1975-01-07 California Inst Of Techn System for and method of extract concentration and direct injection into a chromatographic instrument
US4202666A (en) * 1978-02-24 1980-05-13 Tracor, Inc. Method and apparatus for preventing the destruction of an alkali source of a nitrogen-phosphorous detector
US4203726A (en) * 1978-02-28 1980-05-20 Varian Associates, Inc. Thermionic detector
US4622305A (en) * 1983-03-02 1986-11-11 Patterson Paul L Method of thermionic ionization detection of chemical substances in a gaseous environment
US4873862A (en) * 1986-04-16 1989-10-17 The Perkin-Elmer Corporation Ionization detectors for gas chromatography
US4801430A (en) * 1986-09-25 1989-01-31 Trustees Of Tufts College Interface for separating an analyte of interest from a liquid solvent
US4883958A (en) * 1988-12-16 1989-11-28 Vestec Corporation Interface for coupling liquid chromatography to solid or gas phase detectors
US4994096A (en) * 1989-05-09 1991-02-19 Hewlett-Packard Co. Gas chromatograph having integrated pressure programmer
US4958529A (en) * 1989-11-22 1990-09-25 Vestec Corporation Interface for coupling liquid chromatography to solid or gas phase detectors
US5108466A (en) * 1990-12-21 1992-04-28 Hewlett-Packard Company Apparatus and methods for controlling fluids provided to a chromatographic detector
US5108468A (en) * 1991-03-26 1992-04-28 General Electric Company Switching system for a multidimensional gas chromatograph
DE4237167C2 (de) * 1991-11-14 2003-04-17 Perkin Elmer Corp Vorrichtung zum geregelten Beheizen einer Ionenquelle eines thermionischen Detektors

Also Published As

Publication number Publication date
US5554540A (en) 1996-09-10
JPH08240580A (ja) 1996-09-17
DE69534005T2 (de) 2006-04-13
EP0723151A3 (de) 1998-03-18
EP0723151B1 (de) 2005-02-09
EP0723151A2 (de) 1996-07-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AGILENT TECHNOLOGIES, INC. (N.D.GES.D. STAATES, US

8339 Ceased/non-payment of the annual fee