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J Chromatogr A

Title:		Use of poly(ethylene terephtalate) film bag to sample and remove humidity from atmosphere containing volatile organic compounds
Author(s):		Beghi S; Guillot JM;
Address:		"Ecole des Mines d'Ales, Industrial Environment Engineering Laboratory, Ales Cedex, France"
Journal Title:		J Chromatogr A
Year:		2008
Volume:		20071224
Issue:		1-Feb
Page Number:		1 - 5
DOI:		10.1016/j.chroma.2007.12.051
ISSN/ISBN:		0021-9673 (Print) 0021-9673 (Linking)
Abstract:		"Nalophan bags made from poly(ethylene terephtalate) film are often used to collect odorous gases. In this paper, the sample water removal method, based on humidity diffusion through the sample bag film, was applied using Nalophan bags and Tedlar bags to sample volatile organic compounds (VOCs) at low concentration (10 microg/m(3)). The removal of water with Nalophan bags enabled a reduction in relative humidity (RH) in a 10-L air sample from 80% to 20% in 2h at 20 degrees C. The use of Nalophan bags for the removal of water did not involve significant VOC loss among the 11 compounds studied"
Keywords:		Air Pollutants/*analysis Diffusion Drug Stability Environmental Monitoring/*methods *Humidity Organic Chemicals/*analysis Polyethylene Glycols/*chemistry Polyethylene Terephthalates Polyvinyls/chemistry Volatilization Water/chemistry;
Notes:		"MedlineBeghi, Sandra Guillot, Jean-Michel eng Comparative Study Research Support, Non-U.S. Gov't Netherlands 2008/02/05 J Chromatogr A. 2008 Mar 7; 1183(1-2):1-5. doi: 10.1016/j.chroma.2007.12.051. Epub 2007 Dec 24"