Solid-phase microextraction coupled with high performance liquid chromatography: a complementary technique to solid-phase microextraction-gas chromatography for the analysis of pesticide residues in strawberries
- 1 November 2000
- journal article
- research article
- Published by Taylor & Francis in Food Additives & Contaminants
- Vol. 17 (11) , 915-923
- https://doi.org/10.1080/026520300750038090
Abstract
Solid-phase microextraction coupled with high performance liquid chromatography has been studied for the analysis of methiocarb, napropamide, fenoxycarb and bupirimate in strawberries. The strawberries were blended and centrifuged. Then, an aliquot of the resulting extracting solution was subjected to solidphase microextraction (SPME) on a 60 μm polydimethylsiloxane /divinylbenzen e (PDMS/DVB) fibre for 45 min at room temperature. The extracted pesticides on the SPME fibre were desorbed into SPME/ high performance liquid chromatography (HPLC) interface for HPLC analysis with diode-array detection (DAD). The method is organic solvent-free for the whole extraction process and is simple and easy to manipulate. The detection limits were shown to be at low μg kg−1 level and the linear response covered the range from 0.05 to 2 mg kg−1 of pesticides in strawberries with a regression coefficient larger than 0.99. A good repeatability with RSDs between 2.92 and 9.25% was obtained, depending on compounds.Keywords
This publication has 12 references indexed in Scilit:
- Solid phase microextraction of pesticide residues from strawberriesFood Additives & Contaminants, 1999
- Determination of carbaryl, carbofuran and methiocarb in cucumbers and strawberries by monoclonal enzyme immunoassays and high-performance liquid chromatography with fluorescence detectionJournal of Chromatography A, 1999
- Some applications of solid phase micro extraction (SPME) in the analysis of pesticide residues in foodJournal of Environmental Science and Health, Part B, 1998
- Determination of pesticides in high-water-content samples by off-line supercritical fluid extraction–gas chromatography–electron-capture detectionJournal of Chromatography A, 1998
- Comparison of Two Recent Solventless Methods for the Determination of Procymidone Residues in Wines: SPME/GC/MS and ELISA TestsJournal of Agricultural and Food Chemistry, 1997
- Solid Phase Microextraction for Quantitative Analysis in Nonequilibrium SituationsAnalytical Chemistry, 1997
- Solid-Phase Microextraction Coupled with High-Performance Liquid Chromatography for the Determination of Alkylphenol Ethoxylate Surfactants in WaterAnalytical Chemistry, 1996
- Influence of Ethanol on Pesticide Extraction in Aqueous Solutions by Solid-Phase MicroextractionJournal of Agricultural and Food Chemistry, 1996
- Solid Phase Microextraction Coupled to High-Performance Liquid ChromatographyAnalytical Chemistry, 1995
- Solid-Phase Microextraction. A Solvent-Free Alternative for Sample PreparationAnalytical Chemistry, 1994