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The Sensitized Solid‐Phase Electrochemiluminescence of Electrodeposited Poly‐Luminol/Aniline on AuAg/TiO 2 Nanohybrid Functionalized Electrode for Flow Injection Analysis
Author(s) -
Wei Xiuhua,
Xiao Changbin,
Liu Chao,
Wang Ke,
Tu Yifeng
Publication year - 2014
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.201300559
Subject(s) - electrochemiluminescence , luminol , electrode , cyclic voltammetry , hydrogen peroxide , materials science , dielectric spectroscopy , flow injection analysis , indium tin oxide , detection limit , aniline , inorganic chemistry , electrochemistry , chemistry , organic chemistry , chromatography
In this study, a copolymer of luminol with aniline is electrochemically deposited onto the AuAg/TiO 2 nanohybrid functionalized indium tin oxide coated glass. It is used as a reagentless electrochemiluminescent (ECL) electrode for flow‐injection‐analysis (FIA). The properties of this solid phase ECL electrode are characterized by cyclic voltammetry, electrochemical impedance spectroscopy and scanning electron microscopy etc. It has stronger ECL emission, sensitive response for target analytes and excellent stability. The so‐prepared ECL electrode shows sensitive response to reactive oxygen species thereafter to be applied for determination of hydrogen peroxide with FIA mode. Under optimized conditions, a mass detection limit of 0.822 pg of hydrogen peroxide was obtained. Thus the hydrogen peroxide residues in samples were detected with satisfactory result.