Title: Determination of 23 Organochlorine and Pyrethroid Pesticide Residues in Cucumber by Solid-Phase Extraction and Capillary Gas Chromatograph
Abstract: Objective:The solid-phase extraction and capillary gas chromatography were introduced for determining 23 organochlorine and pyrethroid pesticide residues in cucumber. Method:The organochlorine and pyrethroid pesticides were extracted from cucumber samples with n-hexane by ultrasonic method and cleaned up by Florisil solid-phase extraction column. Then,the extract was separated by capillary column(30 m ×0.25 mm i.d. ×0.25μ m)and detected by ECD(electron capture detector). Results:The average recoveries for spiked standards are 76.0%~110.1%. The relative standard deviations are 0. 81%~3.28%. The range of limit of detection(LOD) is 0.03~2.06 μg/kg. Conclusion:The method is effective,fast and accurate.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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