Determination of copper in rose tea samples using flame atomic absorption spectrometry after emulsification liquid-liquid microextraction.

Autor: Kartoğlu B; Yıldız Technical University, Faculty of Art and Science, Department of Chemistry, 34220 İstanbul, Türkiye., Bodur S; Yıldız Technical University, Faculty of Art and Science, Department of Chemistry, 34220 İstanbul, Türkiye; İstinye University, Faculty of Pharmacy, Department of Analytical Chemistry, 34010 İstanbul, Türkiye; İstinye University, Scientific and Technological Research Application and Research Center, 34010 İstanbul, Türkiye., Zeydanlı D; Gelişim University, Vocational School of Health Care Services, Department of Laboratory Technology, 34310, İstanbul, Türkiye., Göver T; Selçuk University, Faculty of Pharmacy, Department of Analytical Chemistry, 42130, Konya, Türkiye., Özaydın E; Yıldız Technical University, Faculty of Art and Science, Department of Chemistry, 34220 İstanbul, Türkiye., Gülhan Bakırdere E; Yıldız Technical University, Faculty of Education, Department of Mathematics and Science Education, 34349 İstanbul, Türkiye., Bakırdere S; Yıldız Technical University, Faculty of Art and Science, Department of Chemistry, 34220 İstanbul, Türkiye; Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, Çankaya, 06670 Ankara, Türkiye. Electronic address: bsezgin@yildiz.edu.tr.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2024 May 01; Vol. 439, pp. 138140. Date of Electronic Publication: 2023 Dec 04.
DOI: 10.1016/j.foodchem.2023.138140
Abstrakt: Rose tea infusion has gained popularity worldwide due to its health benefits. However, it is known that tea plants can be contaminated with heavy metals including copper. Hence, an accurate and applicable analytical method namely emulsification liquid-liquid microextraction based deep eutectic solvent - flame atomic absorption spectrometry (ELLME-DES-FAAS) was proposed to determine copper at trace levels in rose tea samples. Under the optimum experimental conditions, analytical figures of merit for the developed method were examined, and dynamic range, limit of detection (LOD) and limit of quantification (LOQ) were found to be 5.07-246.61 µg/kg (mass-based) with 0.9992 coefficient of determination, 2.50 µg/kg and 8.32 µg/kg, respectively. A matrix matching calibration strategy was employed to boost recovery results, and the acceptable recovery results were recorded between 95.9 % and 118.4 %. According to recovery results, the developed analytical method can be safely employed to determine the concentration of copper in rose tea samples accurately.
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 © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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