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Simultaneous Determination of Hydroquinone and Catechol at an Activated Glassy Carbon Electrode
Author(s) -
Ahammad A. J. Saleh,
Sarker Subrata,
Rahman Md Aminur,
Lee JaeJoon
Publication year - 2010
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.200900449
Subject(s) - hydroquinone , catechol , activated carbon , electrochemistry , redox , detection limit , electrode , glassy carbon , chemistry , catalysis , nuclear chemistry , materials science , inorganic chemistry , cyclic voltammetry , chromatography , organic chemistry , adsorption
A selective and very simple electrochemical method, based on anodization of a glassy carbon electrode (GCE), was developed for the simultaneous detection of hydroquinone (HQ) and catechol (CT). It was found that the activated GCE showed an excellent catalytic behavior and enhanced reversibility towards the oxidation of both HQ and CT. The redox responses from the mixture of HQ and CT were easily resolved at an activated GCE. The detection limits for HQ and CT were calculated to be 0.16 and 0.11 μM, respectively. The activated GCE was successfully examined for real sample analysis with tap water and it showed a stable and reliable recovery data.