中文摘要：

采用液液萃取法提取、气相色谱电子捕获（EcD）检测器对4种拟除虫菊酯农药（联苯菊酯、氯氟氢菊酯、氯氰菊酯、氰戊菊酯）在酸奶体系中的残留进行测定。结果表明，4种拟除虫菊酯农药以0．50，0．75和1．00mg／L的3个添加水平时的检出限范围是0．004~0．013mg／L，标准曲线的相关系数大于0．999。前处理方法简单，GC分析时间为37min，4种农药在酸乳中的添加回收率为82．49％～111．66％。该方法快速、灵敏度高、各项指标均满足4种拟除虫菊酯在酸奶体系中残留检测的要求。

英文摘要：

The gas chromatography （GC） with ECD detector was employed to detect four pyrethroid pesticides residues in yugort after liq- uid-liquid extraction. The method detection limits ranged from 0.004 to 0.013 mg/L at three concentrations 0.50 mg·L^-1, 0.75 mg/L and 1.00 mg/L. The correlation coefficients of standard curves were more than 0.999. The pre-processing way was simple and the analysis time was 37rain. The addition recoveries of four pyrethroid pesticides in yogurt ranged from 82.49% to 111.66%. The method is rapid, sensitive, and was suitable for the determination of 4 pyrethroid insecticides in yogurt.