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  • Title: Development and certification of a reference material for Fusarium mycotoxins in wheat flour.
    Author: Köppen R, Bremser W, Rasenko T, Koch M.
    Journal: Anal Bioanal Chem; 2013 May; 405(14):4755-63. PubMed ID: 23474971.
    Abstract:
    Deoxynivalenol (DON), nivalenol (NIV) and zearalenone (ZEN) are toxic secondary metabolites produced by several species of Fusarium fungi. These mycotoxins are often found together in a large variety of cereal-based foods, which are regulated by maximum content levels of DON and ZEN. To date, suitable certified reference materials (CRM) intended for quality control purposes are lacking for these Fusarium mycotoxins. In order to overcome this lack, the first CRM for the determination of DON, NIV and ZEN in naturally contaminated wheat flour (ERM®-BC600) was developed in the framework of a European Reference Materials (ERM®) project. This article describes and discusses the whole process of ERM®-BC600 development, including material preparation, homogeneity and stability studies, and an interlaboratory comparison study for certification. A total of 21 selected expert laboratories from different European countries with documented expertise in the field of mycotoxin analysis took part in the certification study using various gas and liquid chromatographic methods. The certified values and their corresponding expanded uncertainties (k = 2) were assigned in full compliance with the requirements of ISO Guide 35 and are as follows: 102 ± 11 μg kg(-1) for DON, 1000 ± 130 μg kg(-1) for NIV and 90 ± 8 μg kg(-1) for ZEN.
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