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Electrochemical Sensor Based on Carbon Nanotubes for the Simultaneous Detection of Phenolic Pollutants
Author(s) -
Govindhan Maduraiveeran,
Lafleur Todd,
Adhikari BalRam,
Chen Aicheng
Publication year - 2015
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.201400608
Subject(s) - catechol , carbon nanotube , electrochemical gas sensor , electrochemistry , glassy carbon , detection limit , electrode , materials science , carbon fibers , nanotechnology , chemistry , cyclic voltammetry , chromatography , organic chemistry , composite number , composite material
A mediator‐free electrochemical sensing platform was designed by utilizing single‐walled carbon nanotube (SWCNT) modified glassy carbon (GC) electrodes for the electrocatalytic oxidation of phenolic compounds. The proposed sensing platform permits the sensitive simultaneous detection of catechol, p ‐cresol and p ‐nitrophenol with the lowest detection limits of 2.3, 3.7 and 7.7 nM, and high sensitivities of 135.08, 94.90 and 110.38 µA/µM, respectively. The non‐enzymatic electrochemical sensor designed in this study also exhibited high stablility and reproducible as well as rapid response, providing new opportunities for the development of sensing devices in the detection of multiple phenolic compounds simultaneously for practical environmental applications.