Fabrication of Spiny-like Spherical Copper Metal–Organic Frameworks for the Microextraction of Arsenic(III) from Water and Food Samples before ICP-MS Detection

Spiny-like spherical copper metal–organic frameworks (SSC-MOFs) were prepared and characterized via SEM, TEM, EDS, XRD, FTIR the BET surface area. The fabricated SSC-MOFs applied to develop a procedure for microextraction of trace arsenic(III) preconcentration. results show that copper- imidazole-derived framework was formed in sphere with spiny area 120.7 m2/g. TEM confirmed perforated network structures SSC-MOFs, which at room temperature. functional groups found contain NH C=N groups. XRD analysis crystalline structure SSC-MOFs. application process microextracting preconcentration achieved superior efficiency. optimum conditions recovery pH 7 use sample volume up 40 mL. developed SSC-MOF-derived has an LOD 0.554 µg·L−1 LOQ 1.66 µg·L−10. accurate from real samples, including food water, promised performance