Graphite carbon nitride-modified screen-printed electrode as a highly sensitive and selective sensor for detection of amaranth.

Autor: Mohammadzadeh Jahani P; School of Medicine, Bam University of Medical Sciences, Bam, Iran. Electronic address: peymanjahani1234@gmail.com., Aflatoonian MR; Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran. Electronic address: m.aflatoonian97@gmail.com., Abbasi Rayeni R; Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran. Electronic address: Dr_abbasi2005@yahoo.com., Di Bartolomeo A; Department of Physics 'E.R. Caianaiello', University of Salerno, Fisciano, 84084, Salerno, Italy. Electronic address: adibartolomeo@unisa.it., Mohammadi SZ; Department of Chemistry, Payame Noor University, Tehran, Iran. Electronic address: szmohammadi@yahoo.com.
Jazyk: angličtina
Zdroj: Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association [Food Chem Toxicol] 2022 May; Vol. 163, pp. 112962. Date of Electronic Publication: 2022 Apr 04.
DOI: 10.1016/j.fct.2022.112962
Abstrakt: This work presented a particular electrochemical sensor for analysis of amaranth, an azo toxic dye. A graphite nitride carbon (g-C 3 N 4 ) was used to modify an electro-treated screen-printed electrode (g-C 3 N 4 /SPE) for electroanalysis of amaranth. Physicochemical characteristics and analytical performance of g-C 3 N 4 /SPE were investigated by relevant equipment. The g-C 3 N 4 /SPE when comparing with bare SPE, possessed an impressive electrocatalytic performance towards the amaranth oxidation. As-developed sensor under the optimal circumstances exhibited an extended linear response range for different amaranth concentrations of 0.08 μM-340.0 μM, with a narrow practical limit of detection (LOD) of 0.02 μM, a limit of quantification (LOQ) of 0.08 μM, and an unparalleled sensitivity of 0.0702 μA/μM using differential pulse voltammetry (DPV). The applicability of as-fabricated sensor was verified by determining the amaranth in real samples, with acceptable recoveries.
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Databáze: MEDLINE
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