Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9748500 | Journal of Chromatography A | 2005 | 10 Pages |
Abstract
The reactivity of phosgene and perfluoroisobutylene (PFIB) towards 1,2-bis-nucleophiles was exploited to allow determination of these gases in air samples. 2-Aminothiophenol (ATP), 3,4-dimercaptotoluene (DMT) and 2-hydroxymethylpiperidine (HMP) were evaluated as bis-nucleophiles capable of forming thermally-stable derivatives with phosgene and PFIB when loaded with triethylamine onto Tenax TA. Experimental design was used to optimise thermal desorption conditions. Detection limits in the low ng mâ3 range were observed for the five derivatives investigated. This work represents the most sensitive analytical method for trace level quantitation of phosgene and PFIB published to date.
Related Topics
Physical Sciences and Engineering
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Authors
Bob Muir, David B. Cooper, Wendy A. Carrick, Christopher M. Timperley, Ben J. Slater, Suzanne Quick,