凝胶渗透色谱净化—气相色谱法测定奶油中有机氯农药残留

›› 2013, Vol. 40 ›› Issue (S1): 68-70.

凝胶渗透色谱净化—气相色谱法测定奶油中有机氯农药残留

常硕, 吴华

1. 北京奶牛中心乳品质量监督检验测试中心, 北京 100192;
2. 安捷伦科技(中国)有限公司, 北京 100102

收稿日期:2013-06-17 出版日期:2013-09-30 发布日期:2013-11-29
通讯作者: 吴华
作者简介:常硕（1982-），男，北京人，在职研究生，工程师，从事乳与乳制品检测工作。

Determination of Organochlorine Pesticides Residues in Fresh Cream by GPC Sample Clean-up and GC-ECD

CHANG Shuo, WU Hua

1. Beijing Dairy Cattle Center, Beijing 100192, China;
2. Agilent Technologies (China) Co., Ltd., Beijing 100102, China

Received:2013-06-17 Online:2013-09-30 Published:2013-11-29

摘要/Abstract

摘要： 作者采用凝胶渗透色谱（GPC）对奶油中8种有机氯农药进行样品前处理，气相色谱—电子捕获检测器进行测定，以保留时间定性，峰面积定量。在10~800 ng/mL浓度范围内，8种有机氯农药的线性良好，相关系数在0.9981~0.9996，回收率在92.4%～117.0%，RSD在1.83%～7.92%，方法检出限为0.65~2.33 μg/kg，满足奶油中有机氯农药残留检测要求。

关键词: GPC; 奶油; 有机氯农药残留; 超高惰性

Abstract: The analysis of pesticides in food and environmental samples is an important part of monitoring the condition of the environment. Gel permeation chromatography (GPC) is a convenient technique to separate small molecules from high molecular weight organic matrices.In this application, eight organochlorine pesticides residues in fresh cream are cleaned up by a GPC system using Agilent EcoSpheres material and then determined by GC-ECD. DB-35ms Ultra Inert capillary GC column and Ultra Inert inlet liner are employed and provide excellent peak shape for this trace-level pesticides analysis. The linearity ranges from 0.9981 to 0.9996 over the concentration of 10~800 ng/mL. RSD were 1.83% to 7.92%.Method recovery and LOD are 92.4%~117.0% and 0.65 ~2.33 μg/kg, respectively.

Key words: GPC; fresh cream; organochlorine pesticide residue; Ultra Inert

中图分类号:

O657.7

常硕, 吴华. 凝胶渗透色谱净化—气相色谱法测定奶油中有机氯农药残留[J]. , 2013, 40(S1): 68-70.

CHANG Shuo, WU Hua. Determination of Organochlorine Pesticides Residues in Fresh Cream by GPC Sample Clean-up and GC-ECD[J]. China Animal Husbandry & Veterinary Medicine, 2013, 40(S1): 68-70.