Journal of Food Composition and Analysis, cilt.144, 2025 (SCI-Expanded, Scopus)
Manganese oxide nanowires were synthesized and used as a sorbent for the dispersive micro-solid-phase extraction method to extract copper from water and food samples. X-ray diffraction, field emission scanning electron microscopy, Fourier transform infrared spectroscopy, and scanning transmission electron microscopy were used to analyze the sorbent. The parameters impacting extraction efficiency were also investigated and optimized in the study. A pH of 7.0, 1 mg of adsorbent, 2.5 minutes for both desorption and adsorption, and 3 mol L−1 HNO3 as the desorption solvent were determined to be the optimum working conditions. The relative recoveries ranged from 91 % to 105 %, and the detection limit was 2.9 ng mL−1. This technique is emphasized for being quick, accurate, and eco-friendly, making it a practical option for detecting the amount of copper in food and water samples.