15%精噁唑禾草灵·二氯吡啶酸乳油高效液相色谱分析  

Determination of Herbicide Clopyralid and Fenoxaprop-P 15% EC by HPLC

作　　者：孙妍[1] 石天玉[1] 刘鹏飞[1] 曹永松[1] 

机构地区：[1]中国农业大学农学与生物技术学院,北京100193

出　　处：《农药》2008年第11期810-811,共2页Agrochemicals

摘　　要：建立了一种反相高效液相色谱(RP-HPLC)对除草剂15%精噁唑禾草灵·二氯吡啶酸乳油的定量分析方法。采用C18ODS色谱柱,乙腈-水-醋酸(体积比70∶29∶1)为流动相,流速1mL/min,检测波长280nm。结果显示有2个吸收峰,分别为二氯吡啶酸和精噁唑禾草灵。在0.5～100mg/L(二氯吡啶酸)和1～200mg/L(精噁唑禾草灵)质量浓度范围内,标准溶液的质量浓度与吸收峰面积线性关系良好,相关系数r2分别为0.9986、1.0000,重复性SR分别为1.364%、0.651%,准确性分别为98.3%、104.2%。Simultaneous determined herbicide clopyralid and fenoxaprop-P by RP-HPLC. The HPLC conditions was a reversed phase column kromasil C18 ODS. The mobile phase consisted of acetonitrile, water and acetum（70：29：1, by vol）, and the flow rate was 1 mL/min, and ultraviolet absorption detector was at 280 nm. The result showed that there are two peaks belong to clopyralid and fenoxaprop-P and have the linear correlations of 0.9984 and 1.0000 within the range of 0.5-100 mg/L（fenoxaprop-P）. The variation coefficients were 1.36% and 0.65% and the average recoveries were 98.3% and 104.2%, respectively.

关 键 词：二氯吡啶酸 精噁唑禾草灵 高效液相色谱 分析方法 

分 类 号：TQ457.2[化学工程—农药化工]