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The Flame Ionisation Detector (FID) on the Clarus 500 Greenhouse Gas Chromatograph (GC) at Weybourne Atmospheric Observatory is used to make quasi-continuous measurements of methane (CH4) in atmospheric air. Samples are analysed every ten minutes and with reference to the NOAA2004 scale for CH4.
Manufacturer & Model: Clarus 500 Gas Chromatograph, Perkin Elmer
Instrument Data Archive Name: The instrument name is used in the generation of the file names for the data files that are archived on CEDA. The names used do not always appear logical and this is for historical reasons. This instrument is referred to as  wao-ghg-gc-fid
Applications: Atmospheric measurements of CH4
Keywords: Gas chromatography, Methane, Flame ionisation detector
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