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Clinical Chemistry 24: 1797-1800, 1978;
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Clinical Chemistry, Vol 24, 1797-1800, Copyright © 1978 by the American Association for Clinical Chemistry

Interlaboratory Comparison of Lead and Cadmium in Blood, Urine, and Aqueous Solutions

Poul-Erik Paulev 1, Poul Solgaard 2, and Jens Christian Tjell 3

1 Institute of Medical Physiology B, University of Copenhagen, Raadmandsgade 71, DK-2200 Copenhagen N, Denmark
2 Research Establishment, Risø, DK-4000 Roskilde, Denmark
3 Department of Sanitary Engineering, Technical University of Denmark, Building 115, DK-2800 Lyngby, Denmark

Analysis for lead and cadmium in biological liquids (blood and urine) is difficult. Results of such analyses from five laboratories are compared for samples with known additions of lead and cadmium. The data, evaluated in terms of inter- and intralaboratory reproducibility and accuracy, suggest that laboratories should voluntarily participate in quality control programs. Users of routine laboratories are advised to use their own quality control program.

Submitted on May 16, 1978
Accepted on July 17, 1978






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Copyright © 1978 by the American Association for Clinical Chemistry.