1.4%氯氰菊酯ULV的高效液相色谱分析

Determination of 1.4% Cypermethrin by HPLC

建立了一种高效液相色谱法(HPLC)测定氯氰菊酯含量的方法。采用填充Hypersil SiO2柱,在以正己烷+四氢呋喃为流动相条件下,在240 nm波长处,用正相高效液相色谱和紫外检测器分离测定氯氰菊酯的有效成分。结果表明,方法的标准偏差为0.016,变异系数为1.4%,平均回收率为100.12%,线性相关系数为0.9992。

A method for the separation and determination of cypermethrin by HPLC was described. The method was using an column filled with Hypersil Si02, and UV detection at 240 nm, and the mobile phase consisted of n - hexane and tetrahydrofuran with a ratio of 99.5 ： 0.5. The result showed that the standard deviation for cypermethrin was 0.016, the variation coefficient was 1.4% , the average recovery was 100.12% , and the correlation was coefficient 0. 9992.