GB1380180A - Flame detector - Google Patents

Flame detector

Info

Publication number
GB1380180A
GB1380180A GB5206072A GB5206072A GB1380180A GB 1380180 A GB1380180 A GB 1380180A GB 5206072 A GB5206072 A GB 5206072A GB 5206072 A GB5206072 A GB 5206072A GB 1380180 A GB1380180 A GB 1380180A
Authority
GB
United Kingdom
Prior art keywords
nozzle
collector
electrode
detector
nov
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
GB5206072A
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.)
Hewlett Packard GmbH Germany
Original Assignee
Hewlett Packard GmbH Germany
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 Hewlett Packard GmbH Germany filed Critical Hewlett Packard GmbH Germany
Publication of GB1380180A publication Critical patent/GB1380180A/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
    • G01N27/626—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

Landscapes

  • 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)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

1380180 lonization counters HEWLETTPACKARD GmbH 10 Nov 1972 [30 Nov 1971] 52060/72 Heading H1D A thermionic flame detector comprises a flame nozzle 9, inlets for combustible gas and a mixture of carrier and sample gases, an electrode 19 disposed about the open end of the nozzle, a collector 13 spaced ftom the nozzle and means for maintaining the nozzle and electrode 19 respectively positive and negative with respect to the collector. A vaporizer and gas chromographic column 2 are connected to a selective thermionic detector 3 having a cylindrical collector 13 containing a RbBr salt crystal 14. Compressed air enters through pipe 7 and exhaust gases pass out through a metal grid 8 and aperture 6; the grid maintaining a pressure above atmosphere in the detector. The nozzle is maintained at 350 V, the annular electrode 19 at a variable potential between 0 and - 350 V and the collector is grounded. A measuring device 16 is connected to the collector 13. H 2 and N 2 containing an organic sample are supplied to the nozzle. The annular electrode reduces noise by absorbing positive carbon ions whilst organic nitrogen ions are gathered by the collector. A separate ignition circuit may be provided.
GB5206072A 1971-11-30 1972-11-10 Flame detector Expired GB1380180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2159256A DE2159256C3 (en) 1971-11-30 1971-11-30 Thermionic flame detector

Publications (1)

Publication Number Publication Date
GB1380180A true GB1380180A (en) 1975-01-08

Family

ID=5826545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5206072A Expired GB1380180A (en) 1971-11-30 1972-11-10 Flame detector

Country Status (6)

Country Link
US (1) US3840343A (en)
JP (1) JPS5214119B2 (en)
DE (1) DE2159256C3 (en)
FR (1) FR2162966A5 (en)
GB (1) GB1380180A (en)
NL (1) NL7216052A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967931A (en) * 1974-09-25 1976-07-06 Research Corporation Flame aerosol detector for liquid chromatography
NL7703583A (en) * 1977-04-01 1978-10-03 Wti Instr FLAME IONIZATION DETECTOR.
US20050161381A1 (en) * 2004-01-27 2005-07-28 Norman Wesley M. Tortuous path in diffusion bonded plates for fluid handling
WO2011106747A1 (en) * 2010-02-26 2011-09-01 Perkin Elmer Health Sciences, Inc. Jet assembly for use in detectors and other devices

Also Published As

Publication number Publication date
JPS4862495A (en) 1973-08-31
FR2162966A5 (en) 1973-07-20
JPS5214119B2 (en) 1977-04-19
DE2159256B2 (en) 1974-08-22
DE2159256C3 (en) 1975-04-17
US3840343A (en) 1974-10-08
DE2159256A1 (en) 1973-06-14
NL7216052A (en) 1973-06-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee