以恩诺沙星为模板分子,α-甲基丙烯酸为功能单体,二甲基丙烯酸乙二醇酯为交联剂,制备了恩诺沙星分子印迹聚合物.以该分子印迹聚合物为固相萃取材料,采用高效毛细管电泳分离方式,建立了分子印迹固相萃取-高效毛细管电泳检测鸡肉中恩诺沙星的方法.结果表明,该方法能有效地萃取和检测鸡肉中的恩诺沙星.在优化条件下,恩诺沙星的检出限为92.02 μg/kg,定量限为336.04 μg/kg;不同恩诺沙星添加水平下的回收率为77.84%~86.52%,相对标准偏差为2.18%~3.76%.该方法适用于鸡肉中恩诺沙星残留的测定.
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