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Talanta

Title:		Rapid removal of selected volatile organic compounds from gaseous mixtures using a new dispersive vapor extraction technique: a feasibility study
Author(s):		Farrell ES; Pacey GE;
Address:		"Department of Health and Biomedical Sciences, Florida Hospital College of Health Sciences, Orlando, FL 32803, USA. sebastian.farrell@fhchs.edu"
Journal Title:		Talanta
Year:		2010
Volume:		20100526
Issue:		2
Page Number:		739 - 744
DOI:		10.1016/j.talanta.2010.05.043
ISSN/ISBN:		1873-3573 (Electronic) 0039-9140 (Linking)
Abstract:		"A new dispersive vapor extraction (DVE) technique for rapid removal of selected volatile organic compounds (VOCs) from gaseous mixtures was investigated. In this technique, less than 1.0 mL of a volatile solvent was vaporized for 8 min in a 250-mL flask containing a gaseous mixture. The flask was then cooled under running tap water for 2-3 min to induce condensation of the vapor and co-extraction of the VOCs from the headspace. The technique was tested over a concentration range of 4-23 ppb, and resulted in extraction efficiencies ranging from 80 to 97% for the VOCs tested. Because of its simplicity and the relatively short sampling time, DVE could potentially lead to high sample throughput and rapid air analysis"
Keywords:		"Chemistry Techniques, Analytical/methods Feasibility Studies Gases/*chemistry Time Factors Volatile Organic Compounds/*analysis/chemistry Volatilization;"
Notes:		"MedlineFarrell, E S Pacey, G E eng Netherlands 2010/07/07 Talanta. 2010 Jul 15; 82(2):739-44. doi: 10.1016/j.talanta.2010.05.043. Epub 2010 May 26"