Bullock D G, Smith N J, Whitehead T P
Clin Chem. 1986 Oct;32(10):1884-9.
The operation and results of the United Kingdom External Quality Assessment Scheme for Lead in Blood, which currently has about 140 participants within and outside the U.K. are described. The choice of specimens, scheme design, and scoring of performance are discussed, as is the validity of the consensus values used as a basis for the scoring. There has been a continued improvement in performance as assessed by this program, some of which appears to have been stimulated by the introduction of Variance Index scoring. The relative performance of the methods for assaying lead in blood is also examined.
本文描述了英国血液铅含量外部质量评估计划的运作及结果，该计划目前在英国国内外约有140名参与者。讨论了样本的选择、计划设计和性能评分，以及用作评分基础的共识值的有效性。通过该计划评估的性能持续有所提高，其中一些似乎是由方差指数评分的引入所推动的。还研究了血液中铅含量检测方法的相对性能。
