GB903873A - Improvements in and relating to apparatus for determining the proportion of hydrogenin an atmosphere - Google Patents

Improvements in and relating to apparatus for determining the proportion of hydrogenin an atmosphere

Info

Publication number
GB903873A
GB903873A GB3779657A GB3779657A GB903873A GB 903873 A GB903873 A GB 903873A GB 3779657 A GB3779657 A GB 3779657A GB 3779657 A GB3779657 A GB 3779657A GB 903873 A GB903873 A GB 903873A
Authority
GB
United Kingdom
Prior art keywords
proportion
determining
hydrogenin
relating
atmosphere
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
GB3779657A
Inventor
Derek Blair
Peter Whatmough
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB3779657A priority Critical patent/GB903873A/en
Publication of GB903873A publication Critical patent/GB903873A/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
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/38—Flow patterns
    • G01N30/46—Flow patterns using more than one column
    • G01N30/466—Flow patterns using more than one column with separation columns in parallel
    • 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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
    • G01N27/185—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested using a catharometer
    • 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
    • G01N2030/628—Multiplexing, i.e. several columns sharing a single detector
    • 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
    • G01N2030/645—Electrical detectors electrical conductivity detectors

Abstract

<PICT:0903873/III/1> Apparatus for determining the proportion of hydrogen in a gas mixture comprises two gaschromatography columns 4 and 6 of which column 4 separates hydrogen and column 6 is for comparison purposes using twin conductivity cells 13 as a measuring device. Carrier gas is supplied through cylinder 1 at required value adjusted with manometer 7 and the sample loop 10 is supplied via tap 11. The whole apparatus may be kept at constant temperature by oil bath 14.
GB3779657A 1957-12-04 1957-12-04 Improvements in and relating to apparatus for determining the proportion of hydrogenin an atmosphere Expired GB903873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3779657A GB903873A (en) 1957-12-04 1957-12-04 Improvements in and relating to apparatus for determining the proportion of hydrogenin an atmosphere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3779657A GB903873A (en) 1957-12-04 1957-12-04 Improvements in and relating to apparatus for determining the proportion of hydrogenin an atmosphere

Publications (1)

Publication Number Publication Date
GB903873A true GB903873A (en) 1962-08-22

Family

ID=10399058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3779657A Expired GB903873A (en) 1957-12-04 1957-12-04 Improvements in and relating to apparatus for determining the proportion of hydrogenin an atmosphere

Country Status (1)

Country Link
GB (1) GB903873A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368385A (en) * 1964-10-15 1968-02-13 Phillips Petroleum Co Sample system for chromatographic analyzers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368385A (en) * 1964-10-15 1968-02-13 Phillips Petroleum Co Sample system for chromatographic analyzers

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