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Development and validation of a rapid multiresidue method for pesticide determination using gas chromatography-mass spectrometry: a realistic case in vineyard soils.

Schreck E, Geret F, Gontier L, Treilhou M

Laboratoire de Chimie et Biochimie des Interactions, Université de Toulouse, Centre universitaire JF Champollion, Place de Verdun, 81012 Albi, France. eva.schreck@univ-jfc.fr

A rapid and simultaneous method for residue identification and quantification for seven pesticides in agricultural soils has been developed to study a realistic situation in vineyard. The target compounds are two insecticides, two herbicides and three fungicides, from different chemical families. The procedure is based on a pressurized liquid extraction (PLE) with acetone, before a multiresidue GC-MS analysis. The recovery of PLE is between 53.8+/-2.4 and 99.9+/-4.4% according to pesticide. A limit of detection (LOD) between 1.4 and 4.6 microg kg(-1) of dry soil was obtained for five analytes. This procedure for testing soil contamination is sensitive and easy to perform.

Published 22 September 2008 in Talanta, 77(1): 298-303.
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