Amino-functionalized Fe3O4@SiO2-NH2@MIL-101(Fe)-NH2 for magnetic solid-phase extraction of PFOA and PFOS from water and milk.
Per- and polyfluoroalkyl substances, known as PFASs, are persistent organic pollutants. Perfluorooctanoic acid and perfluorooctane sulfonate, referred to as PFOA and PFOS, respectively, require selective sample preparation before trace-level LC-MS/MS analysis. Herein, an amino-functionalized magnetic MIL-101(Fe) compos...