2025

Radovanović, Milan B. 
Simonović, Ana T.
Petrović Mihajlović, Marija B.
Tasić, Žaklina Z.
Antonijević, Milan M.

MDPI

Chemosensors

13

8

282

English

M21 - Paper in a top international journal

Waste from zinc−carbon batteries poses a serious environmental protection problem. One of the main problems is also the reliable and rapid determination of some compounds that may be present in food and beverages consumed worldwide. This study addresses these problems and presents a possible solution for the electrochemical detection of xanthine using carbon from spent batteries. Cyclic voltammetry and differential pulse voltammetry are electrochemical methods used for the detection of xanthine. The techniques used demonstrate the mechanism of xanthine oxidation in the tested environment. A linear correlation was found between the oxidation current peaks and the xanthine concentration in the range of 5·10−7 to 1·10−4 M, as well as the values for the limit of detection and the limit of quantification, 7.86·10−8 M and 2.62·10−7 M, respectively. The interference test shows that the electrode obtained from waste Zn-C batteries has good selectivity, which means that the electrode can be used for xanthine determination in the presence of various ions. The data obtained show that carbon sensors from used zinc−carbon batteries can be used to detect xanthine in real samples.

recycled carbon material, electroanalysis, chemosensors, food analysis, xanthine, real samples, green tea, beer

DOI

10.3390/chemosensors13080282

ISSN

2227-9040

URI

https://repozitorijum.tfbor.bg.ac.rs/handle/...