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

SOYLAK M., Coban A. N., Ahmed H. E. H.

FOOD CHEMISTRY, cilt.442, 2024 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 442
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.foodchem.2024.138426
  • Dergi Adı: FOOD CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Kocaeli Üniversitesi Adresli: Evet

Özet

This study focuses on the development and application of a novel nanocomposite (functionalized nanodiamonds@CuAl2O4@HKUST-1)-based mu-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 mu g kg(-1) for Cd and 0.052 mu g 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 mu g kg(-1) Pb) and fresh mint (0.197 mu g kg(-1)Cd), but still below recommended limits set by FAO/ WHO (300 mu g kg(-1) for Pb and 200 mu g kg(-1) for Cd). It promises to ensure food safety, monitor environmental contamination, and informs regulatory decisions to protect public health.