Micro solid phase extraction of lead and cadmium using functionalized nanodiamonds@CuAl 2 O 4 @HKUST-1 nanocomposite for FAAS analysis in food and water samples.

Autor: Soylak M; Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey; Technology Research & Application Center (ERU-TAUM), Erciyes University, 38039 Kayseri, Turkey; Turkish Academy of Sciences (TUBA), Cankaya, Ankara, Turkey. Electronic address: soylak@erciyes.edu.tr., Çoban AN; Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey; Technology Research & Application Center (ERU-TAUM), Erciyes University, 38039 Kayseri, Turkey., Ahmed HEH; Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey; Sudan Atomic Energy Commission (SAEC) - Chemistry and Nuclear Physics Institute, Khartoum, Sudan; Sudan University of Science and Technology (SUST) - College of Science-Scientific Laboratories Department, Chemistry Section, Khartoum, Sudan.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2024 Jun 01; Vol. 442, pp. 138426. Date of Electronic Publication: 2024 Jan 14.
DOI: 10.1016/j.foodchem.2024.138426
Abstrakt: This study focuses on the development and application of a novel nanocomposite (functionalized nanodiamonds@CuAl 2 O 4 @HKUST-1)-based µ-SPE method for the sensitive and selective extraction of Pb and Cd from food and water samples. The technique offers high sensitivity and selectivity, allowing accurate measurement of these metals at trace levels. The detection limit is 0.031 µg kg -1 for Cd and 0.052 µg kg -1 for Pb, with a relative standard deviation of 1.7 % for Cd and 4.8 % for Pb. The method was successfully applied to real samples and efficiently quantified Pb and Cd in food and natural water samples. The highest concentrations were found in red lentils (0.274 µg kg -1 Pb) and fresh mint (0.197 µg kg - 1 Cd), but still below recommended limits set by FAO/WHO (300 µg kg -1 for Pb and 200 µg kg -1 for Cd). It promises to ensure food safety, monitor environmental contamination, and informs regulatory decisions to protect public health.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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