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|Title:||The Certification of the Aflatoxins Mass Fraction in Peanut Butter|
|Authors:||BUTTINGER GERHARD; HARBECK STEFAN; JOSEPHS Ralf|
|Citation:||World Mycotoxin Journal vol. 1 no. 3 p. 283-289|
|Publisher:||Wageningen Academic Publishers|
|Type:||Contributions to Conferences|
|Abstract:||In the context of control activities contamintion of food and feed with aflatoxins is a frequent observed non compliance. In particular pistachios, peanuts and products thereof are affected. The Institute for Reference Materials and Measurements has therefore produced a peanut butter material certified for its aflatoxin mass fractions. This certified reference material (CRM) allows to evaluate analytical mehtod performance and to assess the comparability of results from different laboratories. The CRM was produced using naturally contaminated raw materials to ensure equivalent behaviour compared to samples encountered in routine. The homogeneity and the stability of the CRM were thoroughly tested and certified values were determined in an inter-laboratory study. Furthermore, uncertainties of the certified values were assessed including contributions of the homogeneity, stability and certification studies to the combined uncertainty. This newly prepared CRM allows an assessment of trueness of the analytical method at a concentration level corresponding to the legal limits enforced in the European Union. The material has the following certified properties: aflatoxin B1 1.8 ± 0.3 µg/kg, aflatoxin B2 0.5 ± 0.1 µg/kg, aflatoxin G1 0.9 ± 0.3 µg/kg, aflatoxin G2 0.3 ± 0.1 µg/kg and total aflatoxins, as sum of aflatoxins B1, B2, G1 and G2, 3.5 ± 0.5 µg/kg.|
|JRC Institute:||Institute for Reference Materials and Measurements|
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