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J Chromatogr A

Title:		In-tube solid-phase microextraction sampler for long-term storage
Author(s):		Nardi L;
Address:		"ENEA-National Agency for New Technologies, Energy and Environment. C.R. Casaccia, via Anguillarese 301, 00060 S.M. Galeria, Rome, Italy. luigi.nardi@casaccia.enea.it"
Journal Title:		J Chromatogr A
Year:		2003
Volume:		985
Issue:		1-Feb
Page Number:		93 - 98
DOI:		10.1016/s0021-9673(02)01867-8
ISSN/ISBN:		0021-9673 (Print) 0021-9673 (Linking)
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"
Keywords:		"Chromatography, Gas/methods Hydrocarbons/*isolation & purification Volatilization;"
Notes:		"MedlineNardi, Luigi eng Netherlands 2003/02/13 J Chromatogr A. 2003 Jan 24; 985(1-2):93-8. doi: 10.1016/s0021-9673(02)01867-8"