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Anal Bioanal Chem

Title:		"Determination of benzene, toluene, ethylbenzene and xylenes in air by solid phase micro-extraction/gas chromatography/mass spectrometry"
Author(s):		Tumbiolo S; Gal JF; Maria PC; Zerbinati O;
Address:		"Laboratoire de Radiochimie, Sciences Analytiques et Environnement, Faculte des Sciences, Universite de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice, France"
Journal Title:		Anal Bioanal Chem
Year:		2004
Volume:		380
Issue:		5-Jun
Page Number:		824 - 830
DOI:		10.1007/s00216-004-2837-1
ISSN/ISBN:		1618-2642 (Print) 1618-2642 (Linking)
Abstract:		"The aim of the study was to analyse BTEX compounds (benzene, toluene, ethylbenzene, xylenes) in air by solid phase micro-extraction/gas chromatography/mass spectrometry (SPME/GC/MS), and this article presents the features of the calibration method proposed. Examples of real-world air analysis are given. Standard gaseous mixtures of BTEX in air were generated by dynamic dilution. SPME sampling was carried out under non-equilibrium conditions using a Carboxen/PDMS fibre exposed for 30 min to standard gas mixtures or to ambient air. The behaviour of the analytical response was studied from 0 to 65 microg/m3 by adding increasing amounts of BTEX to the air matrix. Detection limits range from 0.05 to 0.1 microg/m3 for benzene, depending on the fibre. Inter-fibre relative standard deviations (reproducibility) are larger than 18%, although the repeatability for an individual fibre is better than 10%. Therefore, each fibre should be considered to be a particular sampling device, and characterised individually depending on the required accuracy. Sampling indoor and outdoor air by SPME appears to be a suitable short-delay diagnostic method for volatile organic compounds, taking advantage of short sampling time and simplicity"
Keywords:		Air Pollutants/analysis Benzene/*analysis Benzene Derivatives/*analysis Calibration Environmental Monitoring Gas Chromatography-Mass Spectrometry/*methods Time Factors Toluene/*analysis Xylenes/*analysis;
Notes:		"MedlineTumbiolo, Simonetta Gal, Jean-Francois Maria, Pierre-Charles Zerbinati, Orfeo eng Research Support, Non-U.S. Gov't Germany 2004/11/02 Anal Bioanal Chem. 2004 Nov; 380(5-6):824-30. doi: 10.1007/s00216-004-2837-1"