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叙述了在同一液相色谱操作条件下,对25%吡·辛乳油中的吡虫啉、辛硫磷进行定量分析测定,本方法采用液相色谱外标法,以甲醇-水作为流动相,使用Hypersil ODS-C18柱和紫外检测器对样品进行定量检测,检测结果令人满意,吡虫啉和辛硫磷的标准偏差分别为0.021和0.087;变异系数分别为1.64%和0.35%;平均回收率分别为98.83%和99.09%;线性相关系数分别为0.9999和0.9999。
The quantitative analysis of imidacloprid and phoxim in 25% of piroxicam oil under the same liquid chromatographic operating conditions was described. The method uses liquid chromatography external standard method with methanol-water as the mobile phase, Hypersil ODS-C18 column and UV detector. The results were satisfactory. The standard deviations of imidacloprid and phoxim were 0.021 and 0.087, respectively. The coefficients of variation were 1.64% and 0.35% respectively. The average recoveries were 98.83 % And 99.09% respectively; the linear correlation coefficients were 0.9999 and 0.9999 respectively.