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Solid phase microextraction of pesticide residues from strawberries.
Food Addit Contam. 1999 Mar; 16(3):111-7.FA

Abstract

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.

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Authors+Show Affiliations

Hu R
Laboratoire de Physico et Toxico Chimie des Systèmes Naturels, Equipe Périgourdine de Chimie Appliquée (LPTCSN-EPCA), Périgueux, France.
Hennion B
No affiliation info available
Urruty L
No affiliation info available
Montury M
No affiliation info available

MeSH

CalibrationFood ContaminationFruitGas Chromatography-Mass SpectrometryHumansPesticide ResiduesReproducibility of Results

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

10492703

Citation

Hu, R, et al. "Solid Phase Microextraction of Pesticide Residues From Strawberries." Food Additives and Contaminants, vol. 16, no. 3, 1999, pp. 111-7.
Hu R, Hennion B, Urruty L, et al. Solid phase microextraction of pesticide residues from strawberries. Food Addit Contam. 1999;16(3):111-7.
Hu, R., Hennion, B., Urruty, L., & Montury, M. (1999). Solid phase microextraction of pesticide residues from strawberries. Food Additives and Contaminants, 16(3), 111-7.
Hu R, et al. Solid Phase Microextraction of Pesticide Residues From Strawberries. Food Addit Contam. 1999;16(3):111-7. PubMed PMID: 10492703.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Solid phase microextraction of pesticide residues from strawberries. AU - Hu,R, AU - Hennion,B, AU - Urruty,L, AU - Montury,M, PY - 1999/9/24/pubmed PY - 1999/9/24/medline PY - 1999/9/24/entrez SP - 111 EP - 7 JF - Food additives and contaminants JO - Food Addit Contam VL - 16 IS - 3 N2 - 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. SN - 0265-203X UR - https://www.unboundmedicine.com/medline/citation/10492703/Solid_phase_microextraction_of_pesticide_residues_from_strawberries_ L2 - http://RD3FS2PT9J.search.serialssolutions.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqm&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&genre=article&issn=0265-203X&eissn=1464-5122&volume=16&issue=3&spage=111&date=1999 DB - PRIME DP - Unbound Medicine ER -

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