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The Electron Capture Detector (ECD) on the Clarus 500 Greenhouse Gas Chromatograph (GC) at Weybourne Atmospheric Observatory is used to make quasi-continuous measurements of nitrous oxide (N2O) and sulphur hexafluoride (SF6) in atmospheric air. Samples are analysed every ten minutes and with reference to the NOAA2006A scale for N2O and NOAA2006 scale for SF6. In addition the instrument can determine the N2O and SF6 concentrations in discrete samples (i.e. whole air samples, SilcoCans).  
 
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-ecd-n2o-sf6
 
Applications: Atmospheric measurements of N2O and SF6
 
Keywords: Nitrous oxide, Sulphur hexafluoride, Gas chromatography, Electron Capture Detector
 
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