多壁碳纳米管修饰的分子印迹电极测定双酚A  

Detection of BPA by MWCNT Modified Molecularly Imprinted Electrode

作　　者：王依婷 孙立震 王思淼 曹萌 赵硕 WANG Yi-ting;SUN Li-zhen;WAGN Si-miao;CAO Meng;ZHAO Shuo(North China University of Science and Technology,Tangshan,Hebei 063000,China)

机构地区：[1]华北理工大学,河北唐山063000

出　　处：《环境监测管理与技术》2023年第4期45-48,共4页The Administration and Technique of Environmental Monitoring

基　　金：国家自然科学基金“固体电解质基阻抗型氨气传感器的研究”资助项目(51672080);博士启动基金资助项目(No.28423299)。

摘　　要：将分子印迹技术与电化学传感器相结合,以双酚A(BPA)为模板分子,吡咯为功能单体,在基于多壁碳纳米管修饰的玻碳电极表面制备了一种对BPA具有选择性识别的分子印迹聚合物,并进行相关试验条件的优化。在最优条件下构建了BPA-MWCNTs-COOH分子印迹电化学传感器,以铁氰化钾K3[Fe(CN)6]为电化学探针,测得BPA在0.01μmol/L~17μmol/L范围内线性良好,检出限为0.006μmol/L。将该方法用于湖水样品测定,结果为未检出,加标回收率为97.8%~115%,RSD<5%。Combining molecular imprinting technology with electrochemical sensors,a molecularly imprinted polymer with selective recognition of bisphenol A(BPA)was prepared on the surface of glassy carbon electrode modified by multi-wall carbon nanotubes,with bisphenol A(BPA)as the template molecule and pyrrole as the functional monomer,and the related experimental conditions were optimized.The BPA-MWCNTs-COOH molecularly imprinted electrochemical sensor was constructed under optimal conditions.With potassium ferricyanide as the electrochemical probe,BPA had good linearity within the range of 0.01μmol/L~17μmol/L,the detection limit was 0.006μmol/L.This method was used to the determination of surface water in Jinghu Lake in North China University of Science and Technology.The results were not detected.The recoveries were 97.8%~115%,and RSD<5%.

关 键 词：双酚A 多壁碳纳米管 分子印迹聚合物 电聚合 电化学传感器 

分 类 号：O657.1[理学—分析化学]