A Voltammetric Sensor Based on Spinel-Structured Copper Ferrite Nanoparticles Multiwalled Carbon Nanotubes Modified Carbon Paste Electrode for Determination of Dacarbazine

Foroozan Hasanpour Foroozan Hasanpour , Masoumeh Taei Masoumeh Taei , Masoud Fouladgar Masoud Fouladgar
Российский электрохимический журнал
Abstract / Full Text

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.

Author information
  • Department of Chemistry, Payame Noor University, Tehran, PO BOX, 19395-4697, Iran

    Foroozan Hasanpour

  • Department of Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran

    Masoumeh Taei & Masoud Fouladgar

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