FR95043E - Improvements to gas analyzers. - Google Patents

Improvements to gas analyzers.

Info

Publication number
FR95043E
FR95043E FR145583A FR145583A FR95043E FR 95043 E FR95043 E FR 95043E FR 145583 A FR145583 A FR 145583A FR 145583 A FR145583 A FR 145583A FR 95043 E FR95043 E FR 95043E
Authority
FR
France
Prior art keywords
gas analyzers
analyzers
gas
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
Application number
FR145583A
Other languages
French (fr)
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates 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 Varian Associates Inc filed Critical Varian Associates Inc
Application granted granted Critical
Publication of FR95043E publication Critical patent/FR95043E/en
Expired legal-status Critical Current

Links

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
    • G01N30/72—Mass spectrometers
    • G01N30/7206—Mass spectrometers interfaced to gas chromatograph
    • G01N30/722—Mass spectrometers interfaced to gas chromatograph through a gas permeable barrier (membranes, porous layers)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/34—Purifying; Cleaning

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
FR145583A 1965-12-06 1968-03-27 Improvements to gas analyzers. Expired FR95043E (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US51179465A 1965-12-06 1965-12-06
US51175665A 1965-12-06 1965-12-06
US55561366A 1966-06-06 1966-06-06
US65323566A 1966-07-06 1966-07-06
US626194A US3398505A (en) 1965-12-06 1967-03-27 Dual stage membrane gas separators with variable conductance means for varying their throughput

Publications (1)

Publication Number Publication Date
FR95043E true FR95043E (en) 1970-03-27

Family

ID=24509360

Family Applications (1)

Application Number Title Priority Date Filing Date
FR145583A Expired FR95043E (en) 1965-12-06 1968-03-27 Improvements to gas analyzers.

Country Status (4)

Country Link
US (1) US3398505A (en)
DE (1) DE1773011A1 (en)
FR (1) FR95043E (en)
GB (1) GB1187417A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929003A (en) * 1969-06-16 1975-12-30 Varian Associates Method and apparatus for detecing materials in a liquid
US3724169A (en) * 1970-02-19 1973-04-03 Aero Vac Corp Delta t bar spectrometer
US3649199A (en) * 1970-03-26 1972-03-14 Varian Associates Method for detecting trace quantities of an organic drug material in a living animal
US4089653A (en) * 1975-07-28 1978-05-16 General Electric Company Apparatus for the separation of hydrogen sulfide from gas mixture including carbon dioxide
HU177965B (en) * 1976-12-23 1982-02-28 Hiradastechnikai Gepgyar Method and apparatus for detecting total organic material content lf gases by means of flame ionization detector
DE3230335C2 (en) * 1982-03-05 1988-10-20 Friedel 4100 Duisburg Genender Bolting of expansion arches for route expansion in mining
US4517461A (en) * 1982-11-29 1985-05-14 Phillips Petroleum Co Carbon isotope analysis of hydrocarbons
US4641541A (en) * 1986-02-11 1987-02-10 Daryl Sharp Internal mass spectrometer interface to a gas chromatograph
US4791292A (en) * 1986-04-24 1988-12-13 The Dow Chemical Company Capillary membrane interface for a mass spectrometer
US4713963A (en) * 1986-06-26 1987-12-22 Daryl Sharp Method and device for vacuum chromatography
US5479815A (en) * 1994-02-24 1996-01-02 Kraft Foods, Inc. Method and apparatus for measuring volatiles released from food products
DE4444524C2 (en) * 1994-11-30 1997-04-03 Inst Umwelttechnologien Gmbh Method and device for the detection of gaseous high molecular weight traces in a carrier gas for quasi real-time measurements in situ
US5469917A (en) * 1994-12-14 1995-11-28 Wolcott; Duane K. Use of capillary-membrane sampling device to monitor oil-drilling muds
US5703359A (en) * 1996-07-29 1997-12-30 Leybold Inficon, Inc. Composite membrane and support assembly
US7361206B1 (en) * 2004-09-07 2008-04-22 United States Of America As Represented By The Secretary Of The Navy Apparatus and method for water vapor removal in an ion mobility spectrometer

Also Published As

Publication number Publication date
GB1187417A (en) 1970-04-08
US3398505A (en) 1968-08-27
DE1773011A1 (en) 1971-08-12

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