Magnetic Solid-Phase Extraction of Lead (II) from Water, Tea, and Linden Leaf Samples Using a Zirconium-Based Metal Organic Framework (Zr-MOF@Fe3O4) Prior to Determination by Flame Atomic Absorption Spectrometry
Food Analytical Methods, cilt.18, sa.9, ss.2106-2119, 2025 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 18 Sayı: 9
- Basım Tarihi: 2025
- Doi Numarası: 10.1007/s12161-025-02849-0
- Dergi Adı: Food Analytical Methods
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Agricultural & Environmental Science Database, CAB Abstracts, Compendex, Food Science & Technology Abstracts, INSPEC, Veterinary Science Database
- Sayfa Sayıları: ss.2106-2119
- Anahtar Kelimeler: Atomic absorption spectrometry, Lead, Metal organic framework, Solid-phase extraction, Tea, Water
- Gazi Üniversitesi Adresli: Evet
Özet
Magnetic metal organic framework (Zr-MOF@Fe3O4) was synthesized and applied as a solid-phase extractor to the separation and/or preconcentration of Pb(II) from water, tea, and linden samples prior to its determination by flame atomic absorption spectrometry. Zr-MOF@Fe3O4 were characterized by X-ray diffraction, scanning electron microscope with energy-dispersive X-ray analysis, Fourier transform infrared spectroscopy, and BET methods. The effect of eluent, pH, stirring time, amount of adsorbent, and interfering ions was investigated. Adsorption capacity of Zr-MOF@Fe3O4 and mean recovery of Pb(II) were found as 312.5 mg g−1 and 96 ± 3%, respectively. Detection limit (LOD), quantification limit (LOQ), and linear working range were found as 3.9 µg L−1, 13 µg L−1, and 13–5000 µg L−1, respectively. Precision and accuracy of the method were checked by analyzing standard reference materials and spiked water samples. Both percent relative error and RSD% were less than 4% in the analysis of standard reference materials.