论文部分内容阅读
以甲醇-水(体积比80∶20)为流动相,使用Hypersil ODS不锈钢柱,在238 nm条件下使用紫外检测器,对42%吡嘧.杀草丹可湿性粉剂进行高效液相色谱分离和测定,外标法定量。各有效成分回收率:吡嘧磺隆为97.0%～102.0%,杀草丹为99.0%～100.0%。标准偏差:吡嘧磺隆为0.015,杀草丹为0.059。变异系数:吡嘧磺隆为1.04%,杀草丹为0.11%。线性相关系数:吡嘧磺隆为0.999 5,杀草丹为0.999 6。说明所建立的方法快速、灵敏度高、重现性好,可用于产品质量的控制与分析。
The mobile phase consisted of methanol-water (volume ratio 80:20), using Hypersil ODS stainless steel column, UV detector was used at 238 nm to separate and purify 42% pyrimethamlidazol wettable powder Determination, external standard method. The recovery of the active ingredients: pyrazosulfuron-methyl 97.0% ~ 102.0%, herbicide Dan 99.0% ~ 100.0%. Standard deviation: pyrazosulfuron-methyl is 0.015, herbicide Dan is 0.059. Coefficient of variation: pyrazosulfuron-methyl 1.04%, herbicide Dan 0.11%. Linear correlation coefficient: pyrazosulfuron to 0.999 5, herbicide Dan 0.999 6. It shows that the established method is rapid, sensitive and reproducible. It can be used for product quality control and analysis.