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Sensitive and Selective Detection of Imidacloprid by Graphene‐Oxide‐Modified Glassy Carbon Electrode
Author(s) -
Lei Wu,
Han Zhen,
Si Weimeng,
Hao Qingli,
Zhang Yuehua,
Xia Mingzhu,
Wang Fengyun
Publication year - 2014
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201300244
Subject(s) - graphene , oxide , detection limit , imidacloprid , materials science , electrochemistry , cyclic voltammetry , electrode , glassy carbon , selectivity , electrochemical gas sensor , voltammetry , carbon fibers , nanotechnology , chemical engineering , chemistry , chromatography , composite material , organic chemistry , composite number , catalysis , pesticide , metallurgy , agronomy , biology , engineering
Based on the enhancement effect of graphene oxide (GO), a GO‐modified glassy carbon electrode (GO/GCE) is prepared for the fast and sensitive electrochemical detection of the imidacloprid (IMI) insecticide, with high selectivity and stability, for the first time. The electrochemical behavior of imidacloprid on GO/GCE is investigated by using cyclic voltammetry, and graphene oxide is found to have a strong affinity towards IMI. The reduction peak current varies linearly with the concentration of IMI over the 0.8–10 μ M range and the limit of detection is 0.36 μ M .