Automated Measurement of Nitrogen Trifluoride in Ambient Air

We present an analytical method for the in situ measurement of atmospheric nitrogen trifluoride (NF3), an anthropogenic gas with a 100-year global warming potential of over 16 000. This potent greenhouse gas has a rising atmospheric abundance due to its emission from a growing number of manufacturin...

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Veröffentlicht in:	Analytical chemistry (Washington) 2012-06, Vol.84 (11), p.4798-4804
Hauptverfasser:	Arnold, Tim, Mühle, Jens, Salameh, Peter K, Harth, Christina M, Ivy, Diane J, Weiss, Ray F
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical chemistry Chemistry Chromatographic methods and physical methods associated with chromatography Chromatography Exact sciences and technology Gas chromatographic methods Gas separation Greenhouse gases Industrial plant emissions Measurement Spectrometric and optical methods
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Beschreibung
Zusammenfassung:	We present an analytical method for the in situ measurement of atmospheric nitrogen trifluoride (NF3), an anthropogenic gas with a 100-year global warming potential of over 16 000. This potent greenhouse gas has a rising atmospheric abundance due to its emission from a growing number of manufacturing processes and an expanding end-use market. Here we present a modified version of the “Medusa” preconcentration gas chromatography/mass spectrometry (GC/MS) system of Miller, B. R.; Weiss, R. F.; Salameh, P. K.; Tanhua, T.; Greally, B. R.; Mühle, J.; Simmonds, P. G. Anal. Chem. 2008, 80 (5), 1536–1545. By altering the techniques of gas separation and chromatography after initial preconcentration, we are now able to make atmospheric measurements of NF3 with relative precision
ISSN:	0003-2700 1520-6882
DOI:	10.1021/ac300373e