GB951725A - Improvements in and relating to the determination of the quantity of an infra-red absorbing gas - Google Patents

Improvements in and relating to the determination of the quantity of an infra-red absorbing gas

Info

Publication number
GB951725A
GB951725A GB8350/62A GB835062A GB951725A GB 951725 A GB951725 A GB 951725A GB 8350/62 A GB8350/62 A GB 8350/62A GB 835062 A GB835062 A GB 835062A GB 951725 A GB951725 A GB 951725A
Authority
GB
United Kingdom
Prior art keywords
infra
gas
red
chamber
absorbing
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
GB8350/62A
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.)
Balzers Patent und Beteiligungs AG
Original Assignee
Balzers Patent und Beteiligungs AG
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 Balzers Patent und Beteiligungs AG filed Critical Balzers Patent und Beteiligungs AG
Publication of GB951725A publication Critical patent/GB951725A/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
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/37—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using pneumatic detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

951,725. Determining infra-red-absorbing gases. BALZERS PATENT-UND LIZENZ-ANSTALT. March 5,1962 [March 24, 1961], No. 8350/62. Heading G1B. A method of determining the quantity of an infra-red-absorbing gas comprises (a) introducing the gas to be tested into an evacuated infra-red absorption measuring chamber (b) introducing a gas which does not absorb infra-red into said chamber to give a predetermined pressure above 20 mm Hg and (c) measuring the infra-red absorption of the gas mixture. The method may be used to determine CO (and hence oxygen) in the gases in a vacuum hot extraction furnace. The non- absorbing gas is preferably dried air, which may be introduced so as to flush the supply duct for the gas to be tested and raise the pressure in the chamber to 1 at.
GB8350/62A 1961-03-24 1962-03-05 Improvements in and relating to the determination of the quantity of an infra-red absorbing gas Expired GB951725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB61858A DE1146288B (en) 1961-03-24 1961-03-24 Analysis chamber for non-dispersive ultra-red gas analysis devices for measuring the absorption of small amounts of analysis gas

Publications (1)

Publication Number Publication Date
GB951725A true GB951725A (en) 1964-03-11

Family

ID=6973366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8350/62A Expired GB951725A (en) 1961-03-24 1962-03-05 Improvements in and relating to the determination of the quantity of an infra-red absorbing gas

Country Status (5)

Country Link
BE (1) BE614373A (en)
CH (1) CH397280A (en)
DE (1) DE1146288B (en)
GB (1) GB951725A (en)
NL (1) NL275033A (en)

Also Published As

Publication number Publication date
NL275033A (en) 1900-01-01
CH397280A (en) 1965-08-15
DE1146288B (en) 1963-03-28
BE614373A (en) 1962-06-18

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