Rapid and Effective Sample Cleanup based on Polyvinylpyrrolidone-Coated Magnetite Nanoparticles Coupled with New Pre-Column Derivatization for Determination of Aflatoxins B1, B2, G1 and G2 in Animal Feeds by High-Performance Liquid Chromatography with Fluorescence Detection
Abstract:in animal feed samples based on magnetic solid-phase cleanup and novel pre-column derivatization has been developed. In this work, synthesized polyvinylpyrrolidone-coated Fe 3 O 4 magnetic nanoparticles were applied as adsorbents for rapid cleanup for extracts of animal feed samples. The purified extract was then derivatized with trifluoroacetic acid coupling ultraviolet irradiation which enabled the weakly fluorescent AFB 1 and AFG 1 transformed into their highly fluorescent hemiacetals derivatives. Afterward… Show more
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