PMID- 10492703 OWN - NLM STAT- MEDLINE DCOM- 19991012 LR - 20061115 IS - 0265-203X (Print) IS - 0265-203X (Linking) VI - 16 IP - 3 DP - 1999 Mar TI - Solid phase microextraction of pesticide residues from strawberries. PG - 111-7 AB - A new solid phase microextraction method for the determination of pesticide residues in strawberries for 16 commonly used compounds was described. The strawberries were crushed and centrifuged. An aliquot of the well agitated aqueous supernatant (4 ml) was extracted with a fibre coated with polydimethylsiloxane (PDMS, 100 microns) for 45 min at room temperature. Identification and quantification were achieved using a gas chromatography-mass spectrometry (GC-MS) system and selective ion monitoring (SIM). The method was tested for the following pesticides: carbofuran, diethofencarb, penconazole, hexaconazole, metalaxyl, folpet, bromopropylate, dichlofluanid, alpha-endosulfan, beta-endosulfan, parathion ethyl, procymidone, iprodione, vinclozolin, myclobutanil and chlorothalonil. Limits of detection, repeatability and linearity for standard calibration in strawberries were obtained. Positive and negative effects of the matrix between the extracting solution of strawberries and water were observed. Stabilities of these compounds in the extracting solution of strawberries were determined. The solvent-free SPME procedure was found to be quicker and more cost effective than the solvent extraction methods commonly used. FAU - Hu, R AU - Hu R AD - Laboratoire de Physico et Toxico Chimie des Systemes Naturels, Equipe Perigourdine de Chimie Appliquee (LPTCSN-EPCA), Perigueux, France. FAU - Hennion, B AU - Hennion B FAU - Urruty, L AU - Urruty L FAU - Montury, M AU - Montury M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Food Addit Contam JT - Food additives and contaminants JID - 8500474 RN - 0 (Pesticide Residues) SB - IM MH - Calibration MH - *Food Contamination MH - Fruit/*chemistry MH - Gas Chromatography-Mass Spectrometry/methods MH - Humans MH - Pesticide Residues/*isolation & purification MH - Reproducibility of Results EDAT- 1999/09/24 00:00 MHDA- 1999/09/24 00:01 CRDT- 1999/09/24 00:00 PHST- 1999/09/24 00:00 [pubmed] PHST- 1999/09/24 00:01 [medline] PHST- 1999/09/24 00:00 [entrez] AID - 10.1080/026520399284154 [doi] PST - ppublish SO - Food Addit Contam. 1999 Mar;16(3):111-7. doi: 10.1080/026520399284154.