Utilizing nanoflower-like NiFe2O4 for dispersive micro solid phase extraction of copper at ultratrace level in food and water samples

Ozen M. B., UZCAN F., SOYLAK M.

Food Chemistry, cilt.489, 2025 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 489
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.foodchem.2025.145018
  • Dergi Adı: Food Chemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, EMBASE, Food Science & Technology Abstracts, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Anahtar Kelimeler: Copper, D-μSPE, Extraction, Food, HR-CS-FAAS, Nanoflowers, Water
  • Erciyes Üniversitesi Adresli: Evet

Özet

Nanoflower-like NiFe2O4 (NFO-NF) was synthesized and employed to develop a dispersive micro solid phase extraction procedure for copper. NFO-NF was characterized by Fourier-transform infrared spectroscopy (FT-IR), scanning transmission electron microscopy (STEM), scanning electron microscopy-dispersive X-ray spectroscopy (SEM-EDX), field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD). The optimal conditions for experimental parameters were pH: 8.0, adsorbent dose: 2 mg, both adsorption and desorption times: 60 s, sample volume: 30 mL, and eluent: 1.0 mL of 1.0 mol L−1 HNO₃. An effective enrichment factor (30-fold) for copper was obtained. The limit of detection and limit of quantitation of Cu (II) were 2.1 μg L−1, 8.5 μg kg-1, and 7.0 μg L−1, 25.4 μg kg−1 for water and food samples, respectively. The suggested method's accuracy was verified by certified reference materials with recoveries of higher than 90 %. The copper content of food and water samples was successfully determined by using presented method.