Intercomparison program of lead, mercury, and cadmium analysis in blood, urine, and aqueous solutions.

摘要: Sixty-six European laboratories participated in an intercomparison program of lead, mercury, and cadmium analysis blood, urine, aqueous solutions. The experimental protocol was designed such a way that the effect precision, experience, analytical method could be evaluated. For all analyses, scatter reported results is important. major factor influencing variability intralaboratory variation. Analytical methods degree experience do not seem to have significant influence. However, with exception mercury determination satisfactory precision sufficient make interlaboratory variation acceptable. It appears systematic errors are responsible for high observed between "precise" laboratories.