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蔬菜中有机氯农药残留的超临界流体提取和气相色谱法测定
引用本文:王建华,徐强,焦奎,程刚.蔬菜中有机氯农药残留的超临界流体提取和气相色谱法测定[J].色谱,1998,16(6):506-507.
作者姓名:王建华  徐强  焦奎  程刚
作者单位:山东进出口商品检验局一处,青岛化工学院应化系
摘    要: 建立了用超临界流体萃取、气相色谱测定韭菜中百菌清、艾氏剂、狄氏剂、异狄氏剂残留量的方法。样品与无水硫酸镁混合后进行萃取。用正交设计法选择萃取条件,最佳条件为压力30.4MPa,温度40℃。静态萃取时间1min,CO2用量15mL,收集液为乙酸乙酯。

关 键 词:气相色谱法  有机氯农药  超临界流体萃取  蔬菜  韭菜

Supercritical Fluid Extraction and Gas Chromatographic Analysis of Four Organochlorine Pesticides in Vegetable
J Wang,Q Xu,K Jiao,G Cheng.Supercritical Fluid Extraction and Gas Chromatographic Analysis of Four Organochlorine Pesticides in Vegetable[J].Chinese Journal of Chromatography,1998,16(6):506-507.
Authors:J Wang  Q Xu  K Jiao  G Cheng
Institution:Shadong Import & Export Commodity Inspection Bureau, Qingdao, 266002.
Abstract:Supercritical fluid extraction(SFE) of pesticide residues of chlorothalonil, aldrin, dieldrin, and endrin from chives was evaluated. A mixture of vegetable sample: anhydrous magnesium sulfate(2:3) was used for extraction. The extract was analyzed by GC/ECD. The optimum SFE conditions for the pesticides in spiked samples were studied by orthogonal experiment. The chosen conditions were 30.40 MPa, 40 degrees C, 1 min static time, dynamic extraction with 15 mL of CO2, and collection in 3 mL of ethyl acetate. All the pesticides were extracted satisfactorily from their matrix.
Keywords:gas chromatography  organochlorine pesticides  supercritical fluid extraction  vegetable  chives
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