麦草敌的高效液相色谱分析

采用正相高效液相色谱法，以邻苯二甲酸二异辛酯为内标物，对南京农业大学实验农药厂新近研制生产的复合型麦田除草剂——麦草敌可湿性粉剂中的苯黄隆和旋光性化合物敌草强〔Ｒ（－）敌草胺〕进行定量分析。方法的变异系数为０．３４％，回收率为９９．５１％～１００．３２％，线性相关系数为０．９９９９。

An Analysis of Maicaodi by High Performance Liquid Chromatography

Maicaodi has recently been developed and produced by the pesticide plant of Nanjing Agricultural University. The quantitative analysis of the effective components--tribenuron methyl and R (-)napropamide in wettable powder of Maicaode, by a high performance liquid chromatographic method was carried out with a Lichrosorb Si-60 20cm x 0.46cm i.d. column, mobile phase of petroleum ether/isopropanol/methanol/acetonitrile/chloroform mixture solvent (80:5:5:5:5) and internal standard of diisooctyl phthalate. The sample was detected by ultraviolet absorption at 254 nm. The retention times of tribenuron methyl and R (-)napropamide were 10-11min and 6-7min respectively. The coefficient of variation of this analysis was 0.34% with a recovery of 99.51%-100.32%. The coefficient of linear correlation was 0.9999.