Fe3O4-SiO2-MIL-53 (Fe) nanocomposite for magnetic dispersive micro-solid phase extraction of cadmium (II) at trace levels prior to HR-CS-FAAS detection

• Published in: Food chemistry 2023-12, Vol.429, p.136855-136855, Article 136855
• Main Authors: Soylak, Mustafa, Uzcan, Furkan, Goktas, Oguzhan, Gumus, Zinar Pinar
• Format: Article
• Language: English
• Subjects: Cadmium; Food samples; Metal organic frameworks; Preconcentration; Water samples
• ISSN: 0308-8146; 1873-7072
• DOI: 10.1016/j.foodchem.2023.136855

•Fe3O4-SiO2-MIL-53 (Fe) nanocomposite was used to extraction of Cd (II).•M-d-µSPE method can be applied to both water and food samples.•M-µSPE- HR-CS-FAAS procedure was efficient to determine Cd (II) even in the presence of interfering ions. A magnetic metal–organic framework Fe3O4-SiO2-MIL-53 (Fe) nanocomposite was synthesized for magnetic dispersion micro-solid phase extraction (M-d-µSPE) of cadmium in water, spice, chocolate, tea, and tobacco samples prior to the detection by flame atomic absorption spectrometry. Fe3O4-SiO2-MIL-53 (Fe) nanocomposite fabricated using the solvothermal technique was characterized using a field emission scanning electron microscope and X-ray diffraction. The extraction efficiency of the method was improved by optimizing the experimental factors. After optimization, the linearity range for Cd (II) was 4.3–500 µgL-1. The limits of detection and quantification were 1.3 and 4.3 µgL-1, respectively. The presented magnetic dispersion-micro solid phase extraction method was applied to Cd (II) analysis in food and some environmental samples.