title: Interlaboratory comparison of blood lead determinations.
abstract: Results are presented for an interlaboratory proficiency study of blood lead determinations. Samples were pooled from individuals occupationally exposed to lead. Performance of individual laboratories is compared over a two year period. With increased emphasis in recent years on proficiency studies of this type, agreement between laboratories has been somewhat improved, but blood remains a difficult matrix in which to measure lead concentration.
mesh_terms: D001774:Blood Chemical Analysis / Q000379:methods*; D006801:Humans; D007854:Lead / Q000097:blood*; D013223:Statistics as Topic
chemical_list: D007854:Lead