GB1070741A - Improvements in and relating to gas or vapour detectors - Google Patents

Improvements in and relating to gas or vapour detectors

Info

Publication number
GB1070741A
GB1070741A GB46167/62A GB4616762A GB1070741A GB 1070741 A GB1070741 A GB 1070741A GB 46167/62 A GB46167/62 A GB 46167/62A GB 4616762 A GB4616762 A GB 4616762A GB 1070741 A GB1070741 A GB 1070741A
Authority
GB
United Kingdom
Prior art keywords
gas
chamber
pipe
mixture
vapour
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
GB46167/62A
Inventor
Norman Lennox Gregory
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB46167/62A priority Critical patent/GB1070741A/en
Priority to US327211A priority patent/US3361907A/en
Publication of GB1070741A publication Critical patent/GB1070741A/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
    • 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
    • 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

Landscapes

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

Abstract

1,070,741. lonization chambers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 14, 1964 [Dec. 6, 1962], No. 46167/62. Heading H1D. Gas or vapour analysis apparatus is so constructed that the gas or vapour mixture undergoing analysis is prevented from contacting an internal ionizing means. As shown, an insulating body 2, e.g. of P.T.F.E., and a conductive body 3, e.g. of brass, are separated by an apertured cathode 4 and insulator 5 to form a detecting chamber 8 and a chamber 11 for an ionizing means of sodium 226 sandwiched between gold or silver foils formed into a cylinder 12. An inert gas such as nitrogen introduced through a pipe 13 provides a flow through the orifice 6 thus preventing the mixture for analysis, which is introduced through a pipe 10, from entering the. chamber 11. A pipe 14 provides an outlet for all the gases. The presence of various components in the gas mixture is indicated by changes in the electron current between the cathode 4 and an anode 7 which is supported in the chamber 8 by a plug 9. The detector may be operated either as an electron-capture type or as an electron mobility type. Alternatively, a recessed conductive insert may replace the plug 9 to provide an argon detector (Fig. 2, not shown).
GB46167/62A 1962-12-06 1962-12-06 Improvements in and relating to gas or vapour detectors Expired GB1070741A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB46167/62A GB1070741A (en) 1962-12-06 1962-12-06 Improvements in and relating to gas or vapour detectors
US327211A US3361907A (en) 1962-12-06 1963-12-02 Apparatus for gas analysis having voltage means to accelerate electrons from an ionization chamber to a detection chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46167/62A GB1070741A (en) 1962-12-06 1962-12-06 Improvements in and relating to gas or vapour detectors

Publications (1)

Publication Number Publication Date
GB1070741A true GB1070741A (en) 1967-06-01

Family

ID=10440129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46167/62A Expired GB1070741A (en) 1962-12-06 1962-12-06 Improvements in and relating to gas or vapour detectors

Country Status (2)

Country Link
US (1) US3361907A (en)
GB (1) GB1070741A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445757A (en) * 1965-10-14 1969-05-20 Mc Donnell Douglas Corp Capillary ionization gas detector and analyzer using timed interval current fluctuations
US3626180A (en) * 1968-12-03 1971-12-07 Franklin Gno Corp Apparatus and methods for separating, detecting, and measuring trace gases with enhanced resolution
US3611013A (en) * 1970-02-09 1971-10-05 Westinghouse Electric Corp Breakdown potential control assembly for gas flow-through electrical discharge device
US4053825A (en) * 1974-07-22 1977-10-11 General Electric Company Ionization chamber type gas leak detector operating in the high voltage avalanche region
US4063156A (en) * 1976-02-27 1977-12-13 Varian Associates, Inc. Assymetric cylinder electron capture detector
US4264817A (en) * 1979-02-27 1981-04-28 Hewlett-Packard Company Coaxial electron capture detector with thermionic emission electron source
US4304997A (en) * 1979-02-27 1981-12-08 Hewlett-Packard Company Electron capture detector with thermionic emission electron source
US4684807A (en) * 1983-08-11 1987-08-04 Varian Associates, Inc. Flow contoured electron capture detector cell
US4651008A (en) * 1983-08-11 1987-03-17 Varian Associates, Inc. Sample inlet system for an electron capture detector
US5920072A (en) * 1997-09-30 1999-07-06 Hewlett-Packard Co. Ionization detector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009098A (en) * 1958-08-15 1961-11-14 Nat Res Corp Electrical apparatus for analyzing gases
NL266283A (en) * 1960-06-27
US3247375A (en) * 1960-12-23 1966-04-19 James E Lovelock Gas analysis method and device for the qualitative and quantitative analysis of classes of organic vapors
NL267344A (en) * 1961-01-23

Also Published As

Publication number Publication date
US3361907A (en) 1968-01-02

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