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OALib Journal期刊
ISSN: 2333-9721
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碳纳米管修饰电极分子印迹传感器快速测定沙丁胺醇
, PP. 1053-1057
Keywords: 分子印迹膜,电化学聚合,邻苯二胺,沙丁胺醇
Abstract:
以单壁碳纳米管(SWNTs)为电极材料,应用分子印迹技术,以邻苯二胺为功能单体、沙丁胺醇为模板,采用电化学聚合法制备了一种新型的快速检测沙丁胺醇分子印迹传感器,并运用电化学方法去除模板。在磷酸盐缓冲溶液(PBS)中,利用线性溶出伏安法对印迹和非印迹膜的性能进行了比较,对分子印迹膜的影响因素进行了优化。实验表明,本传感器检测沙丁胺醇具有很高的灵敏性和特异性,检测线性范围为7.94×10-8～1.36×10-5mol/L,检出限为6.08×10-8mol/L。此传感器只需对样品进行简单处理即可用于猪肉中沙丁胺醇的测定,加标回收率为92.1%～113%。
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