建立了出口鳗鱼中溴氰菊酯残留量的气相色谱检测方法。样品经乙腈提取、弗罗里硅土柱净化后，经气相色谱分离，ECD检测器检测。样品在0.002~0.010 mg/kg范围内添加，平均回收率在79.2%~85.9%之间，变异系数在4.2%~5.8%之间。以S/N=3计算，方法检出限为2.0 μg/kg。结果表明，该法简便、灵敏、准确，适用于出口鳗鱼中溴氰菊酯残留量的分析。

A novel method was developed for the determination of deltamethrin residues in exporting eel by GC. Samples were extracted by acetonitrile, purified by a column filled with Florisil, and analyzed with GC. At the linear range of 0.002~0.010 mg/kg, recoveries ranged from 79.2% to 85.9%, and the coefficients of variation were between 4.2% and 5.8%. The detection limit was 2.0 μg/kg (S/N=3). This method was simple, sensitive and precise, suitable for the qualitative and quantitative analysis of deltamethrin residues in exporting eel.

广东省科技计划项目（No.2007B080401015，2007B080401015）