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PubMed · 12580475

In-tube solid-phase microextraction sampler for long-term storage.

Luigi Nardi
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Abstract

Capillary extractors are proposed as samplers-preconcentrators to overcome losses of volatile organic compounds found using "classical" solid-phase microextraction fiber-holder samplers. A set of equal-size extractors was used to extract in-tube an aqueous solution of benzene, toluene, ethylbenzene and xylenes (BTEX) at 146 ppb. After storage for 6-30 days at 0-4 degrees C (or -15 degrees C) GC analyses were carried out to study BTEX recovery. Results demonstrated that sample preservation was very good: recovery was higher than 98% after 6 days, and more than 95% after 30 days. Capillary extractors, due to their high performance in preserving sample integrity, represent a real breakthrough for on-site sampling of volatile compounds by solid-phase pre-concentration techniques.

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Chromatography, GasHydrocarbonsVolatilizationJournal Article

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Luigi Nardi. 2003-01-24. In-tube solid-phase microextraction sampler for long-term storage.. https://doi.org/10.1016/s0021-9673(02)01867-8

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