A Voltammetric Sensor Based on Spinel-Structured Copper Ferrite Nanoparticles Multiwalled Carbon Nanotubes Modified Carbon Paste Electrode for Determination of Dacarbazine
- Authors: Hasanpour F.1, Taei M.2, Fouladgar M.2
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Affiliations:
- Department of Chemistry
- Department of Biochemistry, Falavarjan Branch
- Issue: Vol 54, No 1 (2018)
- Pages: 70-76
- Section: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/189166
- DOI: https://doi.org/10.1134/S1023193517110040
- ID: 189166
Cite item
Abstract
A simple and sensitive method was used to develop a novel sensor for determination of dacarbazine on the surface of multi-walled carbon nanotubes/CuFe2O4 nanoparticles modified carbon paste electrode (MWCNTs/CuFe2O4/CPE). Cyclic voltammetry, differential pulse voltammetry, chronoamperometry, and electrochemical impedance spectroscopy were used to investigate the electrochemical behavior of dacarbazine at the chemically modified electrode. According to the results, MWCNTs/CuFe2O4/CPE showed high electrocatalytic activity for dacarbazine oxidation, producing a sharp oxidation peak current at about +0.80 vs. Ag/AgCl reference electrode at pH 5.0. The peak current was linearly dependent on dacarbazine concentration over the range of 0.10–76.0 μmol L–1 with the detection limit (3σ) of 0.08 μmol L−1. In addition, chronoamperometry was also used to determine diffusion coefficient of dacarbazine at MWCNTs/CuFe2O4/CPE.
About the authors
Foroozan Hasanpour
Department of Chemistry
Author for correspondence.
Email: f.hasanpour@pnu.ac.ir
Iran, Islamic Republic of, Tehran, 19395-4697
Masoumeh Taei
Department of Biochemistry, Falavarjan Branch
Email: f.hasanpour@pnu.ac.ir
Iran, Islamic Republic of, Isfahan
Masoud Fouladgar
Department of Biochemistry, Falavarjan Branch
Email: f.hasanpour@pnu.ac.ir
Iran, Islamic Republic of, Isfahan