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[目的]在建立水中病毒星的残留分析方法的基础上,测定病毒星在正辛醇-水中的表观油水分配系数。[方法]采用HPLC法测定病毒星的质量浓度,用摇瓶法测定病毒星在正辛醇-水中的表观油水分配系数。[结果]病毒星在0.05、0.11、1.13 mg/kg质量分数下的平均添加回收率为98.3%、98.4%、91.5%,变异系数为2.2%~3.9%。[结论]摇瓶法测得病毒星在二次蒸馏水中的平均lgKow为3.08。
[Objective] Based on the establishment of the residual analysis method of virus star in water, the apparent oil-water partition coefficient of Viral Star in n-octanol-water was determined. [Method] The mass concentration of viral star was determined by HPLC and the apparent oil-water partition coefficient of viral star in n-octanol-water was determined by shake flask method. [Result] The average recoveries of viral star at the mass fractions of 0.05, 0.11 and 1.13 mg / kg were 98.3%, 98.4% and 91.5%, respectively. The coefficient of variation was between 2.2% and 3.9%. [Conclusion] The average lgKow of virus star in double distilled water measured by shake flask method was 3.08.