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Chemosphere

Title:		Investigation of partitioning mechanism for volatile organic compounds in a multiphase system
Author(s):		Starokozhev E; Sieg K; Fries E; Puttmann W;
Address:		"Goethe-University, Institute of Atmospheric and Environmental Sciences, Department of Analytical Environmental Chemistry, Altenhoferallee1, 60438 Frankfurt, Germany. e.starokozhev@yahoo.de"
Journal Title:		Chemosphere
Year:		2011
Volume:		20101216
Issue:		10
Page Number:		1482 - 1488
DOI:		10.1016/j.chemosphere.2010.11.033
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"Laboratory experiments were performed to investigate the partitioning behavior of a set of diverse volatile organic compounds (VOCs). After equilibration at a temperature of 25 degrees C, the VOC concentrations were measured by headspace method in combination with gas chromatography/mass spectrometry (GC/MS). The obtained data were used to determine the partition coefficients (K(P)) of VOCs in a gas-liguid-solid system. The results have shown that the presence and nature of solid materials in the working solution control the air-water partitioning of dissolved VOCs. The air/solution partitioning of BTEX and C(9)-C(10) aldehydes was most affected in the presence of diesel soot. K(P) values decreased by a factor ranging from 1.5 for toluene to 3.0 for ethylbenzene. The addition of mineral dust in the working solution exhibited greater influence on the partitioning of short aldehydes. K(P) values decreased by a factor of 1.8. The experimental partition coefficients were used to develop a predictive model for partitioning of BTEX and n-aldehydes between air, water and solid phases"
Keywords:		Aldehydes/chemistry Atmosphere/chemistry Benzene/chemistry Environmental Pollutants/*chemistry Gas Chromatography-Mass Spectrometry Kinetics Particulate Matter/chemistry *Phase Transition Temperature Toluene/chemistry Vehicle Emissions/analysis Volatile O;
Notes:		"MedlineStarokozhev, Elena Sieg, Karsten Fries, Elke Puttmann, Willhelm eng England 2010/12/21 Chemosphere. 2011 Mar; 82(10):1482-8. doi: 10.1016/j.chemosphere.2010.11.033. Epub 2010 Dec 16"