Title: Determination of total As, Cd, Pb and Hg in vegetable feed: IMEP-119 Proficiency Test Report
Authors: CORDEIRO RAPOSO FernandoROBOUCH PiotrCHAROUD-GOT JeanLEYS HANNEFIAMEGKOS IOANNISCIZEK-STROH AnetaDE LA CALLE GUNTINAS Maria Beatriz
Publisher: Publications Office of the European Union
Publication Year: 2014
JRC N°: JRC93269
ISBN: 978-92-79-44653-5 (pdf)
ISSN: 1831-9424 (online)
Other Identifiers: EUR 26998
OP LA-NA-26998-EN-N (online)
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC93269
DOI: 10.2787/48102
Type: EUR - Scientific and Technical Research Reports
Abstract: This report presents the results of a PT (IMEP-119) of the EURL-HM focussing on the determination of total As, Cd, Pb and Hg in vegetable feed in support to Directive 2002/32/EC of the European Parliament and of the Council on undesirable substances in animal feed. IMEP-119 was also opened to all laboratories who wish to take part in the exercise as a way to benchmark their performance against NRLs and other laboratories. One hundred and two participants from 45 countries registered to the exercise. Only eight participants did not report their results. Laboratory results were rated using z- and zeta (ζ-) scores in accordance with ISO 13528. The relative standard deviation for proficiency assessment was set to 15 % for the total As, Cd and Pb mass fractions, and to 22 % for the total Hg mass fraction, respectively. An overall adequate performance for NRLs and feed control laboratories is shown by the percentage of satisfactory performance (expressed as z-scores). These percentages were ranging from 93 to 74 % for NRLs and from 92 to 69 %, for feed control laboratories, respectively.
JRC Directorate:Health, Consumers and Reference Materials

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