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Development of Conducting Polymer Modified Electrodes for the Detection of Phenol
Author(s) -
Lu W.,
Wallace G. G.,
Imisides M. D.
Publication year - 2002
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/1521-4109(200203)14:5<325::aid-elan325>3.0.co;2-9
Subject(s) - polypyrrole , electrode , conductive polymer , polymer , polyaniline , materials science , counterion , fouling , flow injection analysis , phenol , amperometry , chemical engineering , chromatography , chemistry , detection limit , composite material , ion , organic chemistry , electrochemistry , membrane , polymerization , biochemistry , engineering
In this work, the feasibility of using conducting polymers to prevent electrode fouling caused by the oxidation of phenol has been investigated. The use of the conducting polymers, polyaniline and polypyrrole with a range of different counterions have been investigated. Electrode fouling was alleviated with polymers incorporating counterions containing hydrophilic groups. A significant improvement in performance was obtained using polypyrrole with o ‐aminobenzesulfonic acid incorporated. The analytical application of this polymer modified electrode as an amperometric sensor was investigated using flow injection analysis. Under flow conditions, a stable and reproducible response was obtained when a pulsed potential waveform was applied.