草铵膦的正辛醇/水分配系数的测定  

Determination of the n-Octanol/Water Partition Coefficient of Glufosinate-ammonium

作　　者：汪列敏[1] 谭头云[1] 孙剑英[1] 许来威[1] 王高升[1] 

机构地区：[1]浙江省化工研究院,杭州310023

出　　处：《农药》2011年第10期718-719,共2页Agrochemicals

摘　　要：【方法】采用摇瓶法测定草铵膦的正辛醇，水分配系数，并用萃取法对有机相中的草铵膦进行浓缩、反相液相色谱法分别对两相中的草铵膦进行测定。【结果】萃取法的回收率为95．2％～99-3％，方法的变异系数为1．69％。[结论]方法的精密度较高，具有简便、快速的优点，适用于草铵膦的正辛醇，水分配系数测定。[Methods] Shake flask method was used to determinate the n-octanol/water partition coefficient of glufosinateammonium, the glufosinate-ammonium in organic phase was extracted and concentrated, and the glufosinate-ammonium in two phases were determined by HPLC respectively. [Results] The recovery of the extraction was between 95.2-99.3%, and the RSD of lgPow was 1.69%. [Conclusions] The method was easily and quickly performed with higher precision, which was suitable for determination of the n-octanol/water partition coefficient of glufosinate-ammonium.

关 键 词：草铵膦 摇瓶法 萃取 高效液相色谱 

分 类 号：X132[环境科学与工程—环境科学]