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Anal Bioanal Chem


Title:Modelling of adsorption kinetics and calibration curves of gaseous volatile organic compounds with adsorptive solid-phase microextraction fibre: toluene and acetone for indoor air applications
Author(s):Mocho P; Nicolle J; Desauziers V;
Address:"Laboratoire Thermique Energetique et Procedes, Universite de Pau et des Pays de l'Adour, B.P. 1155, 64000, Pau, France"
Journal Title:Anal Bioanal Chem
Year:2008
Volume:20080731
Issue:1-Feb
Page Number:97 - 104
DOI: 10.1007/s00216-008-2249-8
ISSN/ISBN:1618-2650 (Electronic) 1618-2642 (Linking)
Abstract:"Solid-phase microextraction (SPME) with adsorptive Carboxen/PDMS fibre is a powerful sampling device for volatile organic compounds (VOCs) at trace levels in air. However, owing to competitive adsorption, quantification remains a challenging task. In this area, a theoretical model, based on Fick's laws and an extended Langmuir equation, is proposed to deal with the adsorption kinetics of acetone/toluene mixture on SPME fibre under various static extraction conditions. The semipredictive model is first used to determine the axial diffusion coefficients of analytes in the sampling device. The model is then tested with a complex VOC mixture, showing good agreement with experimental data"
Keywords:"Acetone/*analysis/chemistry Adsorption Air Pollution, Indoor/*analysis Calibration Chemistry Techniques, Analytical/*methods Dimethylpolysiloxanes/*chemistry Kinetics Microchemistry/methods Models, Chemical Organic Chemicals/*analysis/chemistry Toluene/*a;"
Notes:"MedlineMocho, Pierre Nicolle, Jerome Desauziers, Valerie eng Germany 2008/08/01 Anal Bioanal Chem. 2008 Sep; 392(1-2):97-104. doi: 10.1007/s00216-008-2249-8. Epub 2008 Jul 31"

 
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