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    J Trace Elem Med Biol. 2002;16(2):113-7.

    Determination of lead in whole blood: comparison of the LeadCare blood lead testing system with Zeeman longitudinal electrothermal atomic absorption spectrometry.

    Pineau A, Fauconneau B, Rafael M, Viallefont A, Guillard O.

    Source

    Laboratory of Toxicology, Faculty of Pharmacy, Nantes, France.

    Abstract

    This study compares the efficiency of blood lead level analysis by graphite furnace atomic absorption spectrometry (GFAAS) and the portable LeadCare Blood Lead Testing System (LCS). Recoveries of two added lead concentrations of 22 and 42 micrograms/dL ranged from 102.4 to 105.5% for LCS and from 96.3 to 97.2% for GFAAS. Measurement of a certified sample (Certified Danish Whole Blood) at a blood lead concentration of 26.2 micrograms/dL gave within- and between-run coefficients of variation which were both approximately 8% by LCS and 2% by GFAAS. Comparison of the tested method (LCS) versus GFAAS from analysis of 76 samples of blood lead collected from workers in different industrial sectors showed imperfect overall correlation (r = 0.95). The LCS is quite suitable for screening purposes, but requires the use of non-frozen blood collected less than 24 h before. Conservative threshold values should be applied when using the LCS for initial screening in the field.

    PMID:
    12195725
    [PubMed - indexed for MEDLINE]

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