Original scientific paper
https://doi.org/10.5599/jese.637
Carvacrol electrochemical reaction characteristics on screen printed electrode modified with La2O3/Co3O4 nanocomposite
Sayed Zia Mohammadi
; Department of Chemistry, Payame Noor University, Tehran, Iran
Hadi Beitollahi
; Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
Tahereh Rohani
; Department of Chemistry, Payame Noor University, Tehran, Iran
Hossein Allahabadi
; Department of Chemistry, Payame Noor University, Tehran, Iran
Abstract
Electrochemical characteristics of carvacrol were investigated on a screen-printed electrode (SPE) modified with La2O3/Co3O4 nanocomposite by using voltammetric techniques, which displayed a well-defined peak for sensitive carvacrol determination in phosphate buffer solution (PBS) at pH 7.0. La2O3/Co3O4 nanoparticles demonstrated suitable catalytic activity for carvacrol determination by differential pulse voltammetry (DPV) technique. Besides, determination of carvacrol in a real samples was recognized in the light of electrochemical findings and a validated voltammetric technique for quantitative analysis of carvacrol in a real formulation was proposed. The DPV peak currents were found to be linear in the concentration range of 10.0 to 800.0 μM. The limit of detection (LOD) was found to be 1.0 μM.
Keywords
Carvacrol; electrochemical reaction; La2O3/Co3O4 nanocomposite; differential pulse voltammetry
Hrčak ID:
217620
URI
Publication date:
28.2.2019.
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