Title: DETERMINATION OF MULTI-RESIDUES OF PYRETHROID IN FRUITS AND VEGETABLES BY GAS CHROMATOGRAPHY
Abstract: To establish a method of determining 4 pyrethroid pesticide residues in fruits and vegetables rapidly and accurately.The pesticide residues were extracted by microwave preparation systems,purified by a florisil SPE column,and then determined by capillary gas chromatography-μECD.The method can simultaneously determine 4 pyrethroid pesticides residues,with the detection limits of 0.001μg/mL,the liner range of 0.001~5μg/mL by fenpropathrin and 0.001~10μg/mL by the other three.The coefficients of correlation were more than 0.9990.The recoveries of four pesticides were between 76.2 %~105.9 %,and the relative standard deviations were 3.4%~12.0%.This method was preponderant in sensitivity,time-saving and purification.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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