Izvorni znanstveni članak
https://doi.org/10.5599/jese.1482
Fe3O4/GO nanocomposite modified glassy carbon electrode as a novel voltammetric sensor for determination of bisphenol A
Fariba Beigmoradi
; Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
Hadi Beitollahi
; Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
Sažetak
A new voltammetric sensor is proposed for the determination of bisphenol A, using a glassy carbon electrode (GCE) modified with Fe3O4/graphene oxide (GO) nanocomposite. The modification of the electrode surface was performed by dispersion drop-casting. The electrochemical behavior of bisphenol A was evaluated by cyclic voltammetry (CV). The oxidation peak was observed during the anodic potential scan at potentials of 0.45 V. Higher anodic peak currents (Ipa) were observed at Fe3O4/GO/GCE modified electrode than at bare GCE. The electrochemical determination by differential pulse voltammetry (DPV) revealed a linear response in the concentration range of 1.0×10-7 to 5.0×10-5 M, with a detection limit of 9.0×10-8 M. The proposed method was successfully applied using water samples, with good recoveries.
Ključne riječi
Modified electrode; water samples; differential pulse voltammetry; high repeatability
Hrčak ID:
286969
URI
Datum izdavanja:
7.12.2022.
Posjeta: 691 *