GB8412825D0 - Determining concentration of gas - Google Patents

Determining concentration of gas

Info

Publication number
GB8412825D0
GB8412825D0 GB8412825A GB8412825A GB8412825D0 GB 8412825 D0 GB8412825 D0 GB 8412825D0 GB 8412825 A GB8412825 A GB 8412825A GB 8412825 A GB8412825 A GB 8412825A GB 8412825 D0 GB8412825 D0 GB 8412825D0
Authority
GB
United Kingdom
Prior art keywords
gas
determining concentration
concentration
determining
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.)
Granted
Application number
GB8412825A
Other versions
GB2160646B (en
GB2160646A (en
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.)
University College London
Original Assignee
University College London
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 University College London filed Critical University College London
Priority to GB8412825A priority Critical patent/GB2160646B/en
Publication of GB8412825D0 publication Critical patent/GB8412825D0/en
Publication of GB2160646A publication Critical patent/GB2160646A/en
Application granted granted Critical
Publication of GB2160646B publication Critical patent/GB2160646B/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
    • G01N21/3504—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
    • 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

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 Biological Materials (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB8412825A 1984-05-18 1984-05-18 Method for determining the concentration of a gas Expired GB2160646B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8412825A GB2160646B (en) 1984-05-18 1984-05-18 Method for determining the concentration of a gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8412825A GB2160646B (en) 1984-05-18 1984-05-18 Method for determining the concentration of a gas

Publications (3)

Publication Number Publication Date
GB8412825D0 true GB8412825D0 (en) 1984-06-27
GB2160646A GB2160646A (en) 1985-12-24
GB2160646B GB2160646B (en) 1988-05-05

Family

ID=10561196

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8412825A Expired GB2160646B (en) 1984-05-18 1984-05-18 Method for determining the concentration of a gas

Country Status (1)

Country Link
GB (1) GB2160646B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800886A (en) * 1986-07-14 1989-01-31 C. R. Bard, Inc. Sensor for measuring the concentration of a gaseous component in a fluid by absorption
US5371020A (en) * 1991-09-19 1994-12-06 Radiometer A/S Method of photometric in vitro determination of the content of an analyte in a sample

Also Published As

Publication number Publication date
GB2160646B (en) 1988-05-05
GB2160646A (en) 1985-12-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920518