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Electrochemical Sensor Based on Carbon Nanotubes Decorated With Znfe2o4 Nanoparticles Incorporated Carbon Paste Electrode for Determination of Metoclopramide and Indomethacin Publisher



Hassannezhad M1 ; Hosseini M2 ; Ganjali MR1, 3 ; Arvand M4
Authors

Source: ChemistrySelect Published:2019


Abstract

It was intended to design a simple, inexpensive, yet stable and selective electrochemical sensor for the analysis of metoclopramide (MCP) and Indomethacin (IND) in individual and binary mixtures there of using a carbon paste of multiwall carbon nanotubes (MWCNTs) decorated with spinel zinc ferrite nanoparticle (ZnFe2O4) electrode i. e. ZnFe2O4/MWCNTs-CPE. The composite material and the modified carbon paste were characterized by analytical methods including Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive X-ray analysis (EDX). The peak currents obtained through the differential pulse voltammetry of MCP and IND revealed a linear increasing trend from 0.6 to 90.0 μM for MCP; and from 5.0 to 200.0 μM for IND and respective detection limits of 0.13 μM and 0.5 μM, were obtained for the target species. The resulting modified CPE was successfully used for the determination of MCP in real samples. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
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