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    Home > Biochemistry News > Microbiology News > Determination of Fumonisins B1 and B2 in Maize Food Products by a New Analytical Method Based on High-Performance Liquid Chromatography and Fluorimetric Detection with Post-column Derivatization

    Determination of Fumonisins B1 and B2 in Maize Food Products by a New Analytical Method Based on High-Performance Liquid Chromatography and Fluorimetric Detection with Post-column Derivatization

    • Last Update: 2021-02-17
    • Source: Internet
    • Author: User
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    A sensitive and selective analytical method for the quantitative determination of fumonisins B
    1
    (FB
    1
    ) and B
    2
    (FB
    2
    ) in maize-based foods for direct human consumption is described. The method, based on high-performance liquid chromatography and fluorescence detection, presents a rapid and automated online post-column derivatization, performed with
    o
    -phthalaldehyde and
    N
    ,
    N
    -dimethyl-2-mercaptoethylamine (Thiofluor™). A complete separation of fumonisins is achieved in less than 13 min by using a C18 column and a gradient elution. Fumonisins are extracted from the sample with a mixture of water, acetonitrile, and methanol. The filtered extract is purified by immunoaffinity column and FB
    1
    and FB
    2
    are eluted with methanol. The method has been successfully validated, and performances comply with �criteria of the Regulation EC No 401/2006.
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