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.
ZELENY Reinhard;
BERNREUTHER Alexander;
SCHIMMEL Heinz;
EMONS Hendrik;
2011-02-24
Publications Office of the European Union
JRC63585
978-92-79-19535-8,
1018-5593 (print),
1831-9424 (online),
EUR 24745 EN,
OP LA-NA-24745-EN-N,
https://publications.jrc.ec.europa.eu/repository/handle/JRC63585,
10.2787/39414,
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