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Journal of Electrochemical Science and Engineering, Vol. 12 No. 1, 2022.

Original scientific paper

https://doi.org/10.5599/jese.1145

Electrochemical sensor for determination of hydroxylamine using functionalized Fe3O4nanoparticles and graphene oxide modified screen-printed electrode

Hamed Tashakkorian ; Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute, Babol University of Medical Sciences, Iran and Department of Pharmacology, School of Medicine, Babol University of Medical Sciences, Babol, Iran 3Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
Behnaz Aflatoonian ; Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
Peyman Mohammadzadeh Jahani ; School of Public Health, Bam University of Medical Sciences, Bam, Iran
Mohammad Reza Aflatoonian ; Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran

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Abstract

A simple strategy for determination of hydroxylamine based on Fe3O4nanoparticles function-nalized by [2-(4-((3-(trimethoxysilyl)propylthio)methyl)1-H1,2,3-triazol-1-yl)aceticacid] (FNPs) and graphene oxide (GO) modified screen-printed electrode (SPE), denoted as (Fe3O4FNPs/GO/SPE), is reported. The electrochemical behavior of hydroxylamine was investigated at Fe3O4FNPs/GO/SPE by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and chro-noamperometry (CHA) techniques in phosphate buffer solution (pH 7.0). Fe3O4FNPs/GO/SPE as a novel electrochemical sensor exhibited catalytic activity toward the oxidation of hydroxylami-ne. The potential of hydroxylamine oxidation was shifted to more negative potentials, and its oxidation peak current increased on the modified electrode, also indicatingthat under these conditions,the electrochemical process is irreversible. The electrocatalytic current of hydroxyl-amine showed a good relationship in the concentration range of 0.05–700.0 μM, with a detection limit of 10.0 nM. The proposed electrode was applied for the determination of hydroxylamine in water samples, too.

Keywords

hydroxylamine; electroanalysis; voltammetry; modified electrode

Hrčak ID:

273046

URI

https://hrcak.srce.hr/273046

Publication date:

24.2.2022.

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