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N2O analysis in the atmosphere via electron capture-gas chromatography (1976)

Pierotti, D. ; Krasnec, J. ; Rasmussen, R. A.

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Publication Date: 2019-06-27

Description: The potential of commercially available pulse-modulated electron capture detector (ECD)-equipped gas chromatographs for direct measurement of ambient levels of N2O is assessed. Since the sensitivity of ECD to N2O is directly proportional to the detector operating temperature and detector standing current, it is necessary to use a 'hot' ECD (250-350 C). The method is shown to be very precise with a standard error not exceeding 1% for automated analysis of ambient air samples. The technology is available to permit highly accurate routine direct analysis of N2O in the troposphere and stratosphere. Both captured air samples or direct real-time measurement from research vessels or airborne platforms are possible.

Keywords: INSTRUMENTATION AND PHOTOGRAPHY

Type: Geophysical Research Letters; 3; Oct. 197

Format: text

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