高效液相色谱法测定10%五氟磺草胺·噁嗪草酮可分散油悬浮剂

Determination of Penoxsulam+Oxaziclomefone 10% OD by HPLC

建立了高效液相色谱法测定10%五氟磺草胺·噁嗪草酮可分散油悬浮剂中有效成分质量分数。以乙腈+水为流动相,使用ZORBAX SB-C_(18)色谱柱,在260 nm波长下,对五氟磺草胺和噁嗪草酮进行定量分析。结果表明,五氟磺草胺和噁嗪草酮线性相关系数分别为0.999 99和0.999 98,相对标准偏差分别为0.690%和0.997%,平均回收率分别为99.51%和99.56%。

A method for determination of penoxsulam ＋ oxaziclomefone 10% OD was developed by HPLC, using acetonitrile aqueous solution as mobile phase, on ZORBAX SB-C_（18） column, with the wavelength of 260 nm. The results indicated that the correlation coefficients of penoxsulam and oxaziclomefone were 0.999 99 and 0.999 98, the relative standard deviations were 0.690% and 0.997%, the average recoveries were 99.51% and 99.56%, respectively.