摘要
以末端金纳米粒子嫁接的聚苯胺复合材料(PANI/Au)为电极材料构建灵敏的多巴胺(DA)电化学传感器。以差示脉冲伏安法(DPV)为测试方法。结果表明:DA在PANI/Au修饰电极上具有优异的电催化活性,并具有宽的双线性段电化学响应(0.01~1μmol/L和1~200μmol/L)和较低的检测极限(LOD=0.01μmol/L)。此外,该传感器具有杰出的抗干扰性和稳定性。PANI/Au复合材料优异的性能为制备具有增强电化学活性的DA传感器提供了新的选择。
A sensitive dopamine(DA)electrochemical sensor was constructed using a gold nanoparticles-grafted terminally polyaniline composite(PANI/Au).The PANI/Au-modified electrode showed excellent electrocatalytic activity for DA oxidation recorded by differential pulse voltammetry(DPV).Analysis of DPV performance for PANI/Au-modified electrode showed a wide bilinear response of 1~200 and 0.01~1μM,a low limit of detection(LOD)of 0.01μM,and outstanding anti-interference and stability.The excellent performance of PANI/Au composite provided a new choice for the fabrication of advanced PANI-based DA sensors with enhanced electrochemical activity.
作者
林玲玲
陈峰
刘锡尧
王佳伟
Lin Lingling;Chen Feng;Liu Xiyao;Wang Jiawei(Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry,Fujian Province University Key Laboratory of Green Energy and Environment Catalysis,College of Chemistry and Materials,Ningde Normal University,Ningde 352100)
出处
《化工新型材料》
CAS
CSCD
北大核心
2020年第12期170-174,共5页
New Chemical Materials
基金
福建省自然科学基金项目(2019J01838)
福建省中青年教师教育科研项目(JT180605)
宁德师范学院科研资助项目(2018Y03和2018Q106)。
关键词
聚苯胺
金
多巴胺
电化学传感器
polyaniline
Au
dopamine
electrochemical sensor
