Electrochemical Characterization and Determination of Catechol at Poly Bcp/Ergo/Gc Modified Electrode
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Date
2018-04-02
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Addis Ababa University
Abstract
A Glassy Carbon Electrode Was Modified With A Poly Bromocresol Purple And Electrochemically
Reduced Graphene Oxide. The Modified Electrode Was Characterized, And Used To Electrochemically
Determine Catechol (1, 2-Dihydroxy Benzene, Cc) Using Cyclic And Differential Pulse Voltammetry
And Exhibited Good Electrocatalytic Activities Toward The Oxidation Of Cc. The Peak Currents Were
Linear With The Cc Concentrations In The Range Of 5–140M With A 0.998 Correlation Coefficient
And A Corresponding Detection Limits Of 0.8M . The Effect Of Hydroquinone, Ascorbic Acid, Phenol
And Dichlorophenol As Interfering Substances On The Peak Current Of Catechol Was Examined Using
Differential Pulse Voltammetry. The Modified Electrode Exhibited Good Sensitivity, And
Reproducibility For The Determination Of Cc Indicating The Promising Applications Of The Modified
Electrode In Real Sample Analysis.
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Keywords
Electroanalytical, Catechol, Conducting Polymers, Electropolymerization, Bromocresol Purple, Electrochemically Reduced Graphene Oxide, Modified Electrode, and Voltammetry