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Magnetic velvet-like graphitic carbon nitride (V-g-C3N4/Fe3O4) was used for rapid 1 min extraction of flavonoids from different tea extracts by co-solvent enhanced adsorptive magnetic solid phase extraction. The nanocomposite can interact with flavonoids, in which Fe3O4 provide hydrogen bond and V-g-C3N4 has hydrophobic and π-π interaction to promote adsorption. The enhanced adsorptive magnetic solid...
A novel approach for assembling homogeneous hyperbranched polymers based on non-covalent interactions with aflatoxins was developed; the polymers were used to evaluate the extraction of aflatoxins B1, B2, G1 and G2 (AFB1, AFB2, AFG1 and AFG2) in simulant solutions. The results showed that the extraction efficiencies of three kinds of synthesized polymers for the investigated analytes were not statistically...
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