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- W1489320312 abstract "Abstract The zearalenone content of maize, wheat, barley, swine feed, and poultry feed samples was determined by immunoaffinity column cleanup followed by liquid chromatography (IAC–LC). Samples were extracted in methanol–water (8 + 2, v/v) solution. The filtered extract was diluted with distilled water and applied to immunoaffinity columns. Zearalenone was eluted with methanol, dried by evaporation, and dissolved in acetonitrile–water (3 + 7, v/v). Zearalenone was separated by isocratic elution of acetonitrile–water (50 + 50, v/v) on reversed-phase C18 column. The quantitative analysis was performed by fluorescence detector and confirmation was based on the UV spectrum obtained by a diode array detector. The mean recovery rate of zearalenone was 82–97% (RSD, 1.4–4.1%) on the original (single-use) immunoaffinity columns. The limit of detection of zearalenone by fluorescence was 10 ng/g at a signal-to-noise ratio of 10:1 and 30 ng/g by spectral confirmation in UV. A good correlation was found (R2 = 0.89) between the results obtained by IAC–LC and by the official AOAC–LC method. The specificity of the method was increased by using fluorescence detection in parallel with UV detection. This method was applicable to the determination of zearalenone content in cereals and other kinds of feedstuffs. Reusability of immunoaffinity columns was examined by washing with water after sample elution and allowing columns to stand for 24 h at room temperature. The zearalenone recovery rate of the regenerated columns varied between 79 and 95% (RSD, 3.2–6.3%). Columns can be regenerated at least 3 times without altering their performance and without affecting the results of repeated determinations." @default.
- W1489320312 created "2016-06-24" @default.
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- W1489320312 date "2001-09-01" @default.
- W1489320312 modified "2023-10-17" @default.
- W1489320312 title "Determination of Zearalenone Content in Cereals and Feedstuffs by Immunoaffinity Column Coupled with Liquid Chromatography" @default.
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- W1489320312 doi "https://doi.org/10.1093/jaoac/84.5.1453" @default.
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