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  • Title: Minicolumn detection methods for aflatoxin in yellow corn: collaborative study.
    Author: Shannon GM, Shotwell OL.
    Journal: J Assoc Off Anal Chem; 1979 Sep; 62(5):1070-5. PubMed ID: 528450.
    Abstract:
    The CPC modified method, the Holaday modified method, and the combination of the 2 procedures have been compared. The CPC modified method involves more cleanup steps but has a more sensitive column. The Holaday modified procedure has fewer cleanup steps, but the column is more difficult to interpret. The combination CPC-Holaday, which has proven to be the most satisfactory, combines the speed and simplicity of the Holaday extraction and the sensitivity of the Velasco minicolumn used in the CPC method. Levels of 10 ng/g were detected by 89% of the collaborating laboratories using the combination, Holaday-Velasco, method. The combination method has been adopted as official first action.
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