期刊
JOURNAL OF SEPARATION SCIENCE
卷 27, 期 12, 页码 1017-1022出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.200301725
关键词
sarin; solid phase microextraction; dynamic sampling; gas chromatography-mass spectrometry
A portable dynamic air sampler and solid phase microextraction were used to simultaneously detect, identify, and quantify airborne sarin with immediate analysis of samples using a field portable gas chromatography-mass spectrometry system. A mathematical model was used with knowledge of the mass of sarin trapped, linear air velocity past the exposed sampling fiber, and sample duration allowing calculation of concentration estimates. For organizations with suitable field portable instrumentation, these methods are potentially useful for rapid onsite detection and quantification of high concern analytes, either through direct environmental sampling or through sampling of air collected in bags.
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