The standard deviation of dicofol was 0.043%,pyridaben was 0.048% in the method,the coefficient of variation were 0.524% and 0.399% respectively,the recovery of both ingredients were more than98%.

• 本方法中三氯杀螨醇的标准偏差为0.；048%25，哒螨酮的标准偏差为0