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采用高效液相色谱法分析杀虫剂辛·氯乳油中辛硫磷的含量，辛硫磷平均回收率为99．3％，标准偏差为0.14％，变异系数0．6％。
The content of phoxim in the insecticidal sycamore EC was analyzed by HPLC. The average phoxim recovery was 99.3% with a standard deviation of 0.14% and a coefficient of variation of 0.6%.