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  • Title: Determination of zearalenone in corn by high pressure liquid chromatography and fluorescence detection.
    Author: Ware GM, Thorpe CW.
    Journal: J Assoc Off Anal Chem; 1978 Sep; 61(5):1058-62. PubMed ID: 721721.
    Abstract:
    A method is reported for determining zearalenone in corn at levels as low as 10 ng/g. Samples are extracted with chloroform-water and cleaned up by liquid-liquid chromatography, and the zearalenone is detected by a fluorescence detector after separation by reverse phase high pressure liquid chromatography (HPLC). Recoveries of zearalenone added to corn at levels from 10 to 200 ng/g averaged greater than 89%. In addition, a confirmation procedure is described which involves sequential HPLC analysis of the sample and a zearalenone standard, using 4 different excitation wavelengths and comparing fluorescence responses obtained. This method was successfully applied to the analysis of 11 samples of cornmeal; zearalenone was detected in 9 of the samples at levels from 11 to 69 ng/g.
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