Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
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Optimization of Headspace Solid-Phase Microextraction for the Determination of Pesticide Residues in Vegetables and Fruits
Meekin CHAIGuanhuat TANAsha LAL
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2008 Volume 24 Issue 2 Pages 273-276

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Abstract

A headspace solid-phase microextraction method has been developed for the determination of 8 pesticides in vegetables and fruits by using gas chromatography with an electron capture detector. Two types of fibers (polyacrylate, 85 µm and polydimethylsiloxane, 100 µm) have been assayed and compared. The main factors: extraction and desorption parameters, ionic strength, and the effects of dilution and organic solvents, were studied and optimized. The optimized procedures resulted in more than 80% recovery for all the investigated vegetable and fruit samples with RSD values below 10%.

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© 2008 by The Japan Society for Analytical Chemistry
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