基于纳米结构的电化学传感器用于伏安法测定苄丝肼、尿酸和叶酸(英文)  

Nanostructure-based electrochemical sensor for the voltammetric determination of benserazide, uric acid, and folic acid

作　　者：Sakineh Esfandiari Baghbamidi Hadi Beitollahi Seyed Zia Mohammadi Somayeh Tajik Somayeh Soltani-Nejad Vahhab Soltani-Nejad 

机构地区：[1]Islamic Azad University,Bandar Abbas Branch [2]Environment Department,Institute of Science and High Technology and Environmental Sciences,Graduate University of Advanced Technology [3]Department of Chemistry,Payame Noor University [4]Department of Chemistry,Shahid Bahonar University of Kerman [5]Young Researchers Society,Shahid Bahonar University of Kerman [6]Department of Chemistry,Islamic Azad University,North Tehran Branch

出　　处：《催化学报》2013年第10期1869-1875,共7页

摘　　要：A carbon paste electrode modified with carbon nanotubes and ferrocene was fabricated.An electrochemical study of the modified electrode and an investigation into its efficiency for the electrocatalytic oxidation of benserazide,uric acid and folic acid were undertaken.The electrode was also used to study the electrocatalytic oxidation of benserazide using cyclic voltammetry,chronoamperometry,and square wave voltammetry(SWV).We found that the oxidation of benserazide at the surface of the modified electrode occurs at a potential about 285 mV lower than that of unmodified carbon paste electrode.SWV gave a linear dynamic range from 8.0×10-7 to 7.0×10 4 mol/L.The detection limit was 1.0×10-7 mol/L for benserazide.This modified electrode was used for the determination of benserazide,uric acid,and folic acid in an urine sample.A carbon paste electrode modified with carbon nanotubes and ferrocene was fabricated.An electrochemical study of the modified electrode and an investigation into its efficiency for the electrocatalytic oxidation of benserazide,uric acid and folic acid were undertaken.The electrode was also used to study the electrocatalytic oxidation of benserazide using cyclic voltammetry,chronoamperometry,and square wave voltammetry(SWV).We found that the oxidation of benserazide at the surface of the modified electrode occurs at a potential about 285 mV lower than that of unmodified carbon paste electrode.SWV gave a linear dynamic range from 8.0×10–7 to 7.0×10 4 mol/L.The detection limit was 1.0×10–7 mol/L for benserazide.This modified electrode was used for the determination of benserazide,uric acid,and folic acid in an urine sample.

关 键 词：BENSERAZIDE Uric ACID Folic ACID CARBON NANOTUBE CARBON PASTE electrode 

分 类 号：O657.1[理学—分析化学]