Original scientific paper
https://doi.org/10.5599/jese.1531
Electrochemical determination of amaranth in food samples by using modified electrode
Sayed Zia Mohammadi
; Department of Chemistry, Payame Noor University, Tehran, Iran
Yar-Mohammad Baghelani
; Department of Chemistry, Faculty of Sciences, Ilam University, Ilam, Iran
Farideh Mousazadeh
; School of Medicine, Bam University of Medical Sciences, Bam, Iran
Shamsi Rahimi
; Department of Chemistry, Payame Noor University, Tehran, Iran
Maryam Mohammad-Hassani
; Department of Chemistry, Payame Noor University, Tehran, Iran
Abstract
In this paper, a new electrochemical sensor was reported for the determination of amaranth in drink soft. In this sensor, activated carbon-Co3O4 nanocomposite (AC-Co3O4) was employed as electrode modifying material. High pores of the activated carbon favour an access of aramanth nolecules within the pores of the working electrode surface, and allow fast electron transfer that is beneficial for the electrochemical detecion process. Thus, the electrochemical signal is obviously enhanced at AC-Co3O4 modified electrode compared to bare carbon paste electrode, and exhibited a wide linear response ranging from 0.1-215 mM with a low detection limit of 10.0 nM (based on 3Sb/m). This work offers a new route in developing new electrochemical sensors for the determination of collorant additives and other hazard components in drink soft.
Keywords
Electrochemical sensor; carbon paste electrode; activated carbon-Co3O4 nanocomposite
Hrčak ID:
286955
URI
Publication date:
7.12.2022.
Visits: 558 *