地面水中叶枯灵的高效液相色谱测定

本文采用反相高效液相色谱法，在质控条件下，对河水，塘水两种地面水中叶枯灵的检验方法进行了测试，用Shimapck ODS柱为分析柱，以甲醇：水＝50：50为流动相，并用冰醋酸调PH至4－5，紫外检测波长281nm，两种水样的平均回收率分别为91．7－96．3％，90－95．8％，相对标准偏差为4．3％，最低检出限为0．0261mg/l，为地面水中叶枯灵卫生标准的实施提供了简便，灵敏，正确的配套测试手段。

Determination of Yekuling in Surface Water with High Performance Liquid Chromatography

A method for quantitative determination of Yekuling in surface water(river and pond water)with revesed phase HPLC was reported.With Shimpack CLC ODS column,menthanol;water=50:50 was used as liquid phase and acidified with glacial acid to pH 4-5.The wave length of UV detector is 281nm .The recovery rates of the two water samples are 91.7-96.3%and 90-95.8% respec- tively. The relative standard deviation(RSD)is 4.3%.The lowest detectable limit is 0.0261 mg/l,This method is simple ,sensitive and accurate and may be used as regular enviromental monitoring.