分析化学2024，Vol.52Issue(9)：1365-1373,9.DOI:10.19756/j.issn.0253-3820.241140
基于羧基化多壁碳纳米管的分子印迹电化学传感器检测罗丹明B
Molecularly Imprinted Electrochemical Sensor Based on Carboxylated Multi-Walled Carbon Nanotubes for Detection of Rhodamine B
摘要
Abstract
In this work,an electrochemical sensor for detection of Rhodamine B(RhB)was constructed by modifying molecularly imprinted polymer(MIP)and carboxylated multi-walled carbon nanotubes(f-MWCNTs)onto the surface of glassy carbon electrode(GCE).The MIP/f-MWCNT/GCE electrochemical sensor demonstrated outstanding performance in detection of RhB due to the excellent conductivity of f-MWCNT and synergistic selectivity of MIP.Under optimal experimental conditions,the sensor had a wide linear response range(0.01‒30 nmol/L,30‒500 nmol/L),with limit of detection of 0.01 nmol/L.In addition,the sensor exhibited excellent recognition ability to RhB in the presence of other structurally similar compounds(e.g.,Rhodamine 6G,methylene blue,and methyl orange),and common metal ions(K+,Ca2+,Mg2+and Fe3+).Furthermore,the sensor exhibited good stability and reproducibility.Additionally,the electrochemical sensor exhibited good practical adaptability when analyzing RhB in real samples,with recoveries ranging from 99.8%‒105.6%for tap water and 99.2%‒105.0%for river water samples.关键词
分子印迹聚合物/电化学传感器/羧基化多壁碳纳米管/罗丹明BKey words
Molecularly imprinted polymer/Electrochemical sensor/Carboxylated multi-walled carbon nanotubes/Rhodamine B引用本文复制引用
刘心语,孙世民,李劲松,舒祖菊,张利君..基于羧基化多壁碳纳米管的分子印迹电化学传感器检测罗丹明B[J].分析化学,2024,52(9):1365-1373,9.基金项目
安徽省高校自然科学基金重点项目(No.KJ2021A0131)和安徽省自然科学基金项目(Nos.1908085QB89,2008085MC84)资助. Supported by the Key Project of Natural Science of Anhui Provincial Department of Education(No.KJ2021A0131)and the Project of Natural Science Foundation of Anhui Province(Nos.1908085QB89,2008085MC84). （No.KJ2021A0131）
