GB919208A - Improvements in or relating to the detection and/or analysis of low concentrations of gases and vapours - Google Patents

Improvements in or relating to the detection and/or analysis of low concentrations of gases and vapours

Info

Publication number
GB919208A
GB919208A GB29263/58A GB2926358A GB919208A GB 919208 A GB919208 A GB 919208A GB 29263/58 A GB29263/58 A GB 29263/58A GB 2926358 A GB2926358 A GB 2926358A GB 919208 A GB919208 A GB 919208A
Authority
GB
United Kingdom
Prior art keywords
chamber
electrode
plug
capillary
radium
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
GB29263/58A
Inventor
James Ephraim Lovelock
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 GB29263/58A priority Critical patent/GB919208A/en
Priority to US837924A priority patent/US3110809A/en
Publication of GB919208A publication Critical patent/GB919208A/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
    • 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
    • G01N27/66—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 and measuring current or voltage
    • 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
    • G01N30/70—Electron capture detectors

Landscapes

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

Abstract

919,208. Ionization chambers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 25, 1959 [Sept. 12, 1958], No. 29263/58. Addition to 882,977. Class 39 (1). [Also in Group XXXVI] An ionization chamber 11, Fig. 1, has an insulating plug 13 closing one end and supporting the metal capillary 16 of a gas chromatography column. As described, a brass chamber 11 is coated with a source 21 of alpha particles such as radium or radium D or with a strontium or tritium source of beta particles. The lower end is closed by a PTFE plug 13 having an extension 17 supporting the metal capillary 16 of a gas chromatography column which may form one electrode. The end of the extension 17 is bored to form a chamber 18 which may contain an electrode in the form of a gold wire 19 supported by the tube 16 end having a beaded or pointed end 20. Alternatively, a porous metal plug electrode 23, Fig. 2, may be used. The inside of the capillary 16 is coated with an involatile hydrocarbon oil fraction. A scavenging gas such as argon, nitrogen or air is passed through the chamber via ports 14, 15. A wire gauze shield may be interposed between the port 14 and the chamber 18.
GB29263/58A 1958-09-12 1958-09-12 Improvements in or relating to the detection and/or analysis of low concentrations of gases and vapours Expired GB919208A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB29263/58A GB919208A (en) 1958-09-12 1958-09-12 Improvements in or relating to the detection and/or analysis of low concentrations of gases and vapours
US837924A US3110809A (en) 1958-09-12 1959-09-03 Apparatus for detecting and analyzing low gaseous concentrations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29263/58A GB919208A (en) 1958-09-12 1958-09-12 Improvements in or relating to the detection and/or analysis of low concentrations of gases and vapours

Publications (1)

Publication Number Publication Date
GB919208A true GB919208A (en) 1963-02-20

Family

ID=10288755

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29263/58A Expired GB919208A (en) 1958-09-12 1958-09-12 Improvements in or relating to the detection and/or analysis of low concentrations of gases and vapours

Country Status (2)

Country Link
US (1) US3110809A (en)
GB (1) GB919208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5807426A (en) * 1995-11-24 1998-09-15 Horiba, Ltd. Gas chromatography apparatus with temperature controlled chamber

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB989614A (en) * 1960-09-16 1965-04-22 Nat Res Dev Improvements in or relating to the measurement of gas or vapour concentrations
US3238367A (en) * 1963-02-20 1966-03-01 Beckman Instruments Inc Device for the analysis of a fluent material by bombarding the same with photoelectrons
US3372000A (en) * 1964-02-27 1968-03-05 Beckman Instruments Inc Flame ionization detector
US3573460A (en) * 1966-09-12 1971-04-06 Gen Electric Ion chamber detector for submicron particles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622208A (en) * 1950-03-20 1952-12-16 Bernstein William Radioactive particle counting
US2917634A (en) * 1955-08-22 1959-12-15 Nuclear Chicago Corp Nuclear radiation counters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5807426A (en) * 1995-11-24 1998-09-15 Horiba, Ltd. Gas chromatography apparatus with temperature controlled chamber

Also Published As

Publication number Publication date
US3110809A (en) 1963-11-12

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