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Kartoğlu B, Bodur S, Zeydanlı D, Göver T, Özaydın E, Gülhan Bakırdere E, Bakırdere S. Determination of copper in rose tea samples using flame atomic absorption spectrometry after emulsification liquid-liquid microextraction. Food Chem 2024; 439:138140. [PMID: 38061298 DOI: 10.1016/j.foodchem.2023.138140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/30/2023] [Accepted: 12/02/2023] [Indexed: 01/10/2024]
Abstract
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.
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Affiliation(s)
- Bedrihan Kartoğlu
- Yıldız Technical University, Faculty of Art and Science, Department of Chemistry, 34220 İstanbul, Türkiye
| | - Süleyman Bodur
- 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
| | - Damla Zeydanlı
- Gelişim University, Vocational School of Health Care Services, Department of Laboratory Technology, 34310, İstanbul, Türkiye
| | - Tuğçe Göver
- Selçuk University, Faculty of Pharmacy, Department of Analytical Chemistry, 42130, Konya, Türkiye
| | - Ecem Özaydın
- Yıldız Technical University, Faculty of Art and Science, Department of Chemistry, 34220 İstanbul, Türkiye
| | - Emine Gülhan Bakırdere
- Yıldız Technical University, Faculty of Education, Department of Mathematics and Science Education, 34349 İstanbul, Türkiye
| | - Sezgin Bakırdere
- 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.
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