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J Chromatogr A

Title:		Determination of polycyclic aromatic hydrocarbons in solid matrices using automated cold fiber headspace solid phase microextraction technique
Author(s):		Guo J; Jiang R; Pawliszyn J;
Address:		"Department of Chemistry, University of Waterloo, Ontario, N2L 3G1, Canada"
Journal Title:		J Chromatogr A
Year:		2013
Volume:		20130806
Issue:
Page Number:		66 - 72
DOI:		10.1016/j.chroma.2013.07.110
ISSN/ISBN:		1873-3778 (Electronic) 0021-9673 (Linking)
Abstract:		"The extraction efficiency of analytes in a cold fiber headspace solid-phase microextraction (CF-HS-SPME) system was investigated both theoretically and experimentally. The system was applied for quantitative extraction of polycyclic aromatic hydrocarbons (PAHs) from solid matrices. In order to achieve better extraction efficiency for PAHs, a method with programmed coating temperature was considered and optimized, leading to higher extraction efficiency for most studied analytes when compared with traditional methods. After optimization of extraction with the programmed coating temperature method, the recoveries were above 90% for the majority of tested compounds from the sand matrix, resulting in exhaustive extraction. Certified reference soil was used to evaluate the cold fiber SPME system. Several organic solvents were used to improve the extraction efficiency. Diethylamine was used successfully to realize the exhaustive extraction for volatile compounds and enhance the recoveries of 60-75% for semi-volatile PAHs. Obtained results indicate that the automated cold fiber extraction is a convenient approach to facilitate high throughput, solventless sample preparation"
Keywords:		"Chromatography, Gas Diethylamines/chemistry Polycyclic Aromatic Hydrocarbons/*analysis/isolation & purification Soil/*chemistry Soil Pollutants/*analysis/isolation & purification Solid Phase Microextraction/*methods Temperature Cold fiber Polycyclic aroma;"
Notes:		"MedlineGuo, Jun Jiang, Ruifen Pawliszyn, Janusz eng Research Support, Non-U.S. Gov't Netherlands 2013/08/15 J Chromatogr A. 2013 Sep 13; 1307:66-72. doi: 10.1016/j.chroma.2013.07.110. Epub 2013 Aug 6"