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Selective stationary phase for solid-phase microextraction analysis of sarin (GB).

S D Harvey·D A Nelson·B W Wright·J W Grate
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Abstract

A number of critical field applications require monitoring air samples for trace levels of chemical warfare agents. Solid-phase microextraction (SPME) is a convenient format to conduct these analyses. Measurements could be significantly improved if a SPME phase selective for nerve agents were substituted for non-selective polymers typically used (e.g., polydimethylsiloxane). This paper evaluates a novel stationary phase, previously developed for methylphosphonate sensor applications, for use with SPME sampling. The phenol-based polymer, BSP3, was found to offer far higher selectivity toward sarin (GB) than polydimethylsiloxane due to a pronounced affinity toward the target analyte and a lower affinity toward hydrocarbons.

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AirChemical Warfare AgentsChromatography, GasChromatography, GelSarinJournal ArticleResearch Support, U.S. Gov't, Non-P.H.S.

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S D Harvey, D A Nelson, B W Wright, J W Grate. 2002-04-19. Selective stationary phase for solid-phase microextraction analysis of sarin (GB).. https://doi.org/10.1016/s0021-9673(02)00188-7

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