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)

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 s...

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Bibliographic Details
Published in:催化学报 2013 (10), p.1869-1875
Main Author: Sakineh Esfandiari Baghbamidi Hadi Beitollahi Seyed Zia Mohammadi Somayeh Tajik Somayeh Soltani-Nejad Vahhab Soltani-Nejad
Format: Article
Language:Chinese
Subjects:
acid
Benserazide
Carbon
electrode
Folic
nanotube
paste
Uric
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Summary: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.
ISSN:0253-9837
1872-2067