[en] An analytical method coupling pressurized liquid extraction (PLE), pre-concentration by thermal desorption (ATD) and analysis by GC/MSMS was developed for the quantification of pesticides in air and dust near vineyards crops to evaluate potential exposure of residents living near these crops. PLE was done using acetonitrile and extracts were concentrated under fume hood to 1 mL. 100 μL of the extract was spiked in a Tenax TA tube and internal standards and N-tert-butyldimethylsilyl-N-methyltrifluoroacetamide were added before thermal desorption at 300°C for 30 min. GC/MSMS analysis was done in MRM mode and limits of quantification and limits of detection were determined for each matrix (passive air sample, active air sample and dust). The method was applied in the field and shows good sensitivity and accuracy.
Disciplines :
Chemistry
Author, co-author :
Rodrigues, Anaïs ; Université de Liège - ULiège > Molecular Systems (MolSys) ; Institute of Chemistry and Processes for Energy, Environment and Health (UMR 7515 CNRS), University of Strasbourg, 25 rue Becquerel, F-67087 Strasbourg Cedex, France
Delhomme, Olivier; Institute of Chemistry and Processes for Energy, Environment and Health (UMR 7515 CNRS), University of Strasbourg, 25 rue Becquerel, F-67087 Strasbourg Cedex, France ; University of Lorraine, F-57000 Metz, France
Millet, Maurice ; Institute of Chemistry and Processes for Energy, Environment and Health (UMR 7515 CNRS), University of Strasbourg, 25 rue Becquerel, F-67087 Strasbourg Cedex, France
Language :
English
Title :
Use of PLE-ATD-GC/MSMS for the Quantification of Airborne Pesticides in Active and Passive Samples and in Dust.
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