The shipboard analysis of trace levels of sulfur hexafluoride, chlorofluorocarbon-11 and chlorofluorocarbon-12 in seawater

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Aug 2008 English Publisher:Elsevier BVJournal:Deep Sea Research Part I: Oceanographic Research Papers, volume 55, pages 1,063-1,074 (issn: 0967-0637,

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Authors: John L. Bullister; David P. Wisegarver;

doi: 10.1016/j.dsr.2008.03.014

The shipboard analysis of trace levels of sulfur hexafluoride, chlorofluorocarbon-11 and chlorofluorocarbon-12 in seawater

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Abstract

Abstract Methods are described for the rapid (11 min) automated shipboard analysis of dissolved sulfur hexafluoride (SF6) in small volume (∼200 cm3) seawater samples. Estimated precision for the SF6 measurements is ∼2% or 0.02 fmol kg−1 (whichever is greater). The method also allows for the simultaneous measurement of chlorofluorocarbon-11 (CFC11) and chlorofluorocarbon-12 (CFC12) on the same water sample, with significantly improved sensitivity over previous analytical methods.

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National Oceanic and Atmospheric Administration
United States

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