Graphene sheet for improving the electrocatalytic activity of a benzofuran derivative modified electrode for determination of epinephrine in the presence of serotonin
- Autores: Mazloum-Ardakani M.1, Brazesh B.1, Hosseinzadeh L.1, Khoshroo A.1
-
Afiliações:
- Department of Chemistry, Faculty of Science
- Edição: Volume 72, Nº 6 (2017)
- Páginas: 689-698
- Seção: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182528
- DOI: https://doi.org/10.1134/S1061934817060119
- ID: 182528
Citar
Resumo
A nanocomposite system based on coumarin derivative and graphene sheet was used to prepare a new electrochemical sensor. The objective of the mentioned nanocomposite was to investigate novel electrochemical properties enabling the quantification of epinephrine (Ep). Cyclic voltammetry was used to study the redox properties of the mentioned modified electrode at different scan rates. Henceforward, the electrocatalytic oxidation of Ep at the surface of the modified electrode was considered. The data has shown excellent catalytic activity of the modified electrode for the electrooxidation of Ep, which leads to a reduction of overpotential for more than 238 mV. According to differential pulse voltammetry (DPV), the oxidation of Ep showed a dynamic range between 0.1 and 1000.0 μM and the detection limit (3s) of 0.011 μM. Besides, DPV was used for the determination of Ep at the mentioned modified electrode in the presence of serotonin.
Palavras-chave
Sobre autores
Mohammad Mazloum-Ardakani
Department of Chemistry, Faculty of Science
Autor responsável pela correspondência
Email: mazloum@yazd.ac.ir
Irã, Yazd, 89195-741
Behnaz Brazesh
Department of Chemistry, Faculty of Science
Email: mazloum@yazd.ac.ir
Irã, Yazd, 89195-741
Laleh Hosseinzadeh
Department of Chemistry, Faculty of Science
Email: mazloum@yazd.ac.ir
Irã, Yazd, 89195-741
Alireza Khoshroo
Department of Chemistry, Faculty of Science
Email: mazloum@yazd.ac.ir
Irã, Yazd, 89195-741