Methyldopa electrochemical sensor based on a glassy carbon electrode modified with Cu/TiO2 nanocomposite

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Published: Aug 14, 2018
DOI: https://doi.org/10.2298/JSC170930024T
Keywords:
methyldopa Cu/TiO2 nanocomposite graphite screen printed electrode voltammetry

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Somayeh Tajik
Bam University of Medical Sciences, Bam
Hadi Beitollahi
Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman
Pourya Biparva
Department of Basic Sciences, Sari Agricultural Sciences and Natural Resources University, Sari

Abstract

A Cu/TiO2 nanocomposite modified glassy carbon electrode (Cu/TiO2/GCE) was fabricated to detect methyldopa by cyclic voltammetry (CV) and different pulse voltammetry (DPV) methods. Compared with bare GCE, the Cu/TiO2/GCE exhibited excellent electrochemical activity for the oxidation of methyldopa. Using DPV technique, the calibration curves for methyldopa were found linear in the concentration range of 0.5–800.0 μM and the detection limit (S/N = 3) was calculated to be 0.23 μM. Additionally, the prepared elec­trochemical sensor of Cu/TiO2/GCE demonstrated a practical feasibility in methyldopa tablets and in urine samples analysis.

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How to Cite
[1]
S. Tajik, H. Beitollahi, and P. Biparva, “Methyldopa electrochemical sensor based on a glassy carbon electrode modified with Cu/TiO2 nanocomposite”, J. Serb. Chem. Soc., vol. 83, no. 7-8, pp. 863–874, Aug. 2018.
Issue
Vol. 83 No. 7-8 (2018)
Section
Electrochemistry

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