电还原氧化石墨烯/多壁碳纳米管复合修饰电极检测萘普生  

Determination of Naproxen by reduced graphene oxide/multi-wall carbon nanotubes composite modified electrode

作　　者：秦洪伟[1] 连爽 刘妍[1] 赵文鹏 尤国红[2] QIN Hong-wei;LIAN Shuang;LIU Yan;ZHAO Wen-peng;YOU Guo-hong(College of Chemical and Material Engineering,Bohai University,Jinzhou 121013,China;College of Physics Science and Technology,Bohai University,Jinzhou 121013,China)

机构地区：[1]渤海大学化学与材料工程学院,辽宁锦州121013 [2]渤海大学物理科学与技术学院,辽宁锦州121013

出　　处：《化学研究与应用》2021年第6期1044-1050,共7页Chemical Research and Application

基　　金：国家自然科学基金项目(41602351)资助;2019年度辽宁省自然科学基金指导计划项目(2019-ZD-0504)资助。

摘　　要：将氧化石墨烯/多壁碳纳米管复合材料滴涂于玻碳电极表面,并运用恒电位还原法对氧化石墨烯进行直接电化学还原,制备了电还原氧化石墨烯/多壁碳纳米管复合修饰电极(rGO/MWCNTs-GCE),利用X-射线衍射(XRD)、扫描电镜(SEM)、拉曼光谱等对其进行初步表征。采用循环伏安法(CV)和差分脉冲伏安法(DPV)研究了萘普生在该复合修饰电极上的电化学响应,并对检测条件进行考察。结果表明,萘普生的浓度为2.0×10^(-4)~5.0×10^(-6) mol·L^(-1)间,氧化峰电流与其浓度成线性相关,检出限达到2.0×10^(-6) mol·L^(-1)。该复合修饰电极稳定性强、重现性好,可用于萘普生的快速检测。The graphene oxide/multi-walled carbon nanotubes composite material was drip-coated on the surface of the glassy carbon electrode.The electroreduction graphene oxide/multi-wall carbon nanotubes modified electrode(rGO/MWCNTs-GCE)was prepared by simple constant potentiometric reduction method,the materials were characterized by X-ray diffraction(XRD),scan-ning electron microscopy(SEM),Raman spectroscopy.Cyclic voltammetry(CV)and differential pulse voltammetry(DPV)were used to study the electrochemical response of Naproxen on rGO/MWCNTs-GCE,the electrochemical detection conditions were investigated.Under optimal conditions,the peak current was linear with the concentration of Naproxen in the range of 2.0×10^(-4)~5.0×10^(-6) mol·L^(-1),with a detection limit of 2.0×10^(-6) mol·L^(-1).The result shows that the composite modified electrode has satisfactory stability and good reproducibility,so it was used for rapid detection of Naproxen.

关 键 词：氧化石墨烯 多壁碳纳米管 电化学检测 萘普生 

分 类 号：O657.1[理学—分析化学]