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Abstract

This report documents the preparation, homogeneity and stability study as well as the certification campaign of three lyophilised human whole blood materials, i.e. BCR-634, BCR-635 and BCR- 636 with certified concentrations of lead and cadmium. The homogeneity and stability studies demonstrated that the materials are homogeneous and stable with respect to storage and transportation. The materials were subjected to a certification campaign for which the analytical work is described.

The concentration and uncertainty (expanded uncertainty with a coverage factor of k=2) of lead and cadmium are
- for BCR-634: (46 +/- 5) µg/L Pb and (1.4 +/- 0.4) µg/L Cd;
- for BCR-635: (210 +/- 24) µg/L Pb and (6.6 +/- 0.6) µg/L Cd;
- for BCR-636: (0.52 +/-0.05)·103 µg/L Pb and (11.6 +/- 0.6) µg/L Cd.

Additional information

Authors: BYRIALSEN K, National Institute of Occupational Health, Copenhagen (DK);KRISTIANSEN J, National Institute of Occupational Health, Copenhagen (DK);CHRISTENSEN J M, National Institute of Occupational Health, Copenhagen (DK);DIRSCHERL C, European Commission, DG Research, Standards, Measurement and Testing, Brussels (BE);GAWLIK B M, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);KLEIN C L, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);LAMBERTY A, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE)
Bibliographic Reference: EUR 21066 EN (2004), 38 pp. Free of charge
Availability: Available from European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE) Tel: +32 (0)14 571 221 Fax: +32 (0)14 590 406 E-mail: jrc-publications-office@ec.europa.eu
ISBN: ISBN 92-8994-7112-3
Record Number: 200417553 / Last updated on: 2004-06-15
Category: PUBLICATION
Original language: en
Available languages: en
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