摘要
采用高效液相色谱法建立了13种磺酰脲类除草剂的同时测定方法。采用ZORBAX SB-C18柱,以乙腈-磷酸水溶液为流动相进行梯度洗脱分离,采用二极管阵列检测器在230nm检测波长下进行检测和外标法定量。13种磺酰脲类除草剂在10～400mg/L范围内线性良好,相关系数为0.9990～0.9999;方法的平均添加回收率在99.2%～101.0%之间,相对标准偏差在0.11%～1.43%之间。
A method was developed for simultaneous determination of 13 sulfonylurea herbicides,which were separated on ZORBAX SB-C18 by HPLC with photodiode array detector,using the mixture of acetonitrile and aqueous phosphoric acid solution as mobile phase. The chromatographic separation and detection was performed by gradient elution at a wavelength of 230 nm and their quantitative determination by external standard method. The 13 sulfonylurea herbicides were measured in good linearity at 10-400 mg/L,and the correlation coefficients were 0.9990-0.9999. The average recoveries were in range of 99.2-101.0% with relative standard deviations of0. 11-1.43%.
出处
《农药》
CAS
北大核心
2009年第11期811-813,共3页
Agrochemicals
基金
国家质检总局质量技术监督科技项目(2007QK130)
江苏省质监局科技项目(KJ083101)
