Title: The Certification of the Mass Fraction of Oxytetracycline in Partially Skimmed Milk - Certified Reference Materials ERM®-BB492 and ERM®-BB493
Authors: ZELENY ReinhardBERNREUTHER AlexanderSCHIMMEL HeinzEMONS Hendrik
Publisher: Publications Office of the European Union
Publication Year: 2011
JRC N°: JRC63585
ISBN: 978-92-79-19535-8
ISSN: 1018-5593 (print), 1831-9424 (online)
Other Identifiers: EUR 24745 EN
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC63585
DOI: 10.2787/39414
Type: EUR - Scientific and Technical Research Reports
Abstract: This report describes the preparation of two milk powder matrix reference materials (ERM-BB492 and ERM-BB493) and the certification of their content (mass fraction) of oxytetracycline. The preparation and processing of the material, homogeneity and stability studies, and the characterisation are described hereafter and the results are discussed. Uncertainties were estimated in compliance with ISO Guide 98-3, Guide to the Expression of Uncertainty in Measurement (GUM) [1]. For ERM-BB492, the uncertainty contains contributions from possible heterogeneity, instability, characterisation, and purity of the common calibrant.
JRC Directorate:Health, Consumers and Reference Materials

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