Supercritical fluid extraction coupled with chromatography-mass spectrometry: Hair analysis. Chromatography-mass spectrometry data processing using the CODA mathematical algorithmстатья

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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.

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[1] Bogdanov A. V., Glazkov I. N., Revel'skii I. A. Supercritical fluid extraction coupled with chromatography-mass spectrometry: Hair analysis. chromatography-mass spectrometry data processing using the coda mathematical algorithm // Journal of Analytical Chemistry. — 2007. — Vol. 62, no. 1. — P. 63–67. The composition of medium-volatility organic compounds extracted from human hair using supercritical fluid extraction (SFE) was determined. The entire extract was trapped from a gas flow in a sorption device at the extractor outlet and thermally desorbed into a gas chromatography-mass spectrometry (GC-MS) instrument. The extracted compounds were identified either by the direct processing of GC-MS data or using the CODA mathematical algorithm. The combination of solventless SFE with the transfer of the entire extract into a GC-MS instrument with the direct analysis of GC-MS data allowed us to determine organic compounds at a level of 3.9 pg/mg hair. The CODA mathematical algorithm for the processing of GC-MS data allowed us to determine compounds at a level of 1.7 pg/mg hair; in the majority of publications, this determination limit was achieved either by selective ion detection or using a GC-MS-MS technique. [ DOI ]

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