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Abstract The determination method of endosulfan and deltamethrin pesticide residues in fishery products was established by gas chromatography. The sample was extracted by acetonitrile plus water, degreased by n-hexane, and purified by adsorption. The detection limit was 0.004 mg/kg for endosulfan, and 0.01mg/kg for deltamethrin under the optimal conditions of pretreatment and determination. There were recoveries from 64.6% to 88.9%, and the relative standard deviations from 4.1% to 9.5% for the two pesticides at the level of 1, 2, and 5 times of determination limit, indicating that the method was characterized by accurate, rapid and high efficiency, and low cost within the limit for import and export.
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Received: 25 November 2009
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