Abstract
建立了悬浮固化分散液液微萃取-毛细管电泳法同时测定水中磺酰脲类除草剂残留的方法.以十二醇为萃取剂、甲醇为分散剂,采用悬浮固化分散液液微萃取技术对水样进行分离提取,并结合毛细管电泳法进行测定.该方法可以有效提取、分离、检测水中残留的微量苯磺隆、吡嘧磺隆、苄嘧磺隆等9种磺酰脲类除草剂,各待测物在10.0～1 000 μg/L范围内线性关系良好,相关系数r≥0.992,方法检出限为2.40～ 7.50 μg/L,方法精密度为6.55％～13.9％.将该方法用于实际水样的测定,取得了较满意的结果,加标回收率为82.0％～104％.该方法简便快速,适合水中磺酰脲类除草剂的同时测定.
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