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Fabrication and Application of a Sensitive and Highly Stable Copper Hexacyanoferrate Modified Carbon Ionic Liquid Paste Electrode for Hydrogen Peroxide and Glucose Detection
Author(s) -
Haghighi Behzad,
Nazari Leila,
Sajjadi S. Maryam
Publication year - 2012
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201200277
Subject(s) - hydrogen peroxide , ionic liquid , hexafluorophosphate , glucose oxidase , inorganic chemistry , copper , graphite , electrode , carbon paste electrode , biosensor , carbon fibers , chemistry , materials science , electrochemistry , nuclear chemistry , chemical engineering , cyclic voltammetry , organic chemistry , catalysis , nanotechnology , composite material , composite number , engineering
A three‐factor mixture design and response surface methodology were employed to find the optimal weight ratio of graphite powder, n ‐dodecylpyridinium hexafluorophosphate and paraffin for the fabrication of a copper hexacyanoferrate modified carbon ionic liquid paste electrode (CuHCFe‐CILPE). The fabricated sensor showed electrocatalytic activity towards oxidation and reduction of hydrogen peroxide. It also was observed that the electrocatalytic activity for hydrogen peroxide oxidation was much higher than the electrocatalytic activity for hydrogen peroxide reduction. Glucose oxidase was then successfully immobilized on the surface of the proposed sensor to examine the possibility of using CuHCFe‐CILPE for the biosensor fabrication.