FR2239921A5 - Analysis of hydrocarbon materials in gases - by determination of ionisation current when dosed into hydrogen-oxygen flame - Google Patents

Analysis of hydrocarbon materials in gases - by determination of ionisation current when dosed into hydrogen-oxygen flame

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Publication number
FR2239921A5
FR2239921A5 FR7328309A FR7328309A FR2239921A5 FR 2239921 A5 FR2239921 A5 FR 2239921A5 FR 7328309 A FR7328309 A FR 7328309A FR 7328309 A FR7328309 A FR 7328309A FR 2239921 A5 FR2239921 A5 FR 2239921A5
Authority
FR
France
Prior art keywords
hydrocarbon
determination
gases
oxygen flame
dosed
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
FR7328309A
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Priority to FR7328309A priority Critical patent/FR2239921A5/en
Application granted granted Critical
Publication of FR2239921A5 publication Critical patent/FR2239921A5/en
Expired legal-status Critical Current

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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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

Measurement of hydrocarbon in gases may be made in the range from less than 1 ppm to explosive concentrations or even higher if diluent gas is used. Flow of hydrocarbon containing gas is measured by pressure drop across a capillary restriction and then burnt in a hydrocarbon-oxygen flame causing ionisation. The ionisation current is measured under constant potential and is proportional to the flow of hydrocarbon, hence the hydrocarbon content of the gas can be measured. Determination of hydrocarbons in gaseous mixtures e.g. polluted atmospheres, stack emissions, explosive atmospheres or for determination of unburn fuel in exhaust gases from petrol or diesel engines.
FR7328309A 1973-08-02 1973-08-02 Analysis of hydrocarbon materials in gases - by determination of ionisation current when dosed into hydrogen-oxygen flame Expired FR2239921A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7328309A FR2239921A5 (en) 1973-08-02 1973-08-02 Analysis of hydrocarbon materials in gases - by determination of ionisation current when dosed into hydrogen-oxygen flame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7328309A FR2239921A5 (en) 1973-08-02 1973-08-02 Analysis of hydrocarbon materials in gases - by determination of ionisation current when dosed into hydrogen-oxygen flame

Publications (1)

Publication Number Publication Date
FR2239921A5 true FR2239921A5 (en) 1975-02-28

Family

ID=9123510

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7328309A Expired FR2239921A5 (en) 1973-08-02 1973-08-02 Analysis of hydrocarbon materials in gases - by determination of ionisation current when dosed into hydrogen-oxygen flame

Country Status (1)

Country Link
FR (1) FR2239921A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001149A1 (en) * 1987-08-03 1989-02-09 Cambustion (Holdings) Ltd. Hydrocarbon flame ionization detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989001149A1 (en) * 1987-08-03 1989-02-09 Cambustion (Holdings) Ltd. Hydrocarbon flame ionization detector

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