Evaluation of proficiency testing results taking into account their uncertainties

被引:5
|
作者
Kuselman, I [1 ]
Papadakis, I
Wegscheider, W
机构
[1] Natl Phys Lab Israel, IL-91904 Jerusalem, Israel
[2] Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements, B-2440 Geel, Belgium
[3] Univ Leoben, Dept Gen & Analyt Chem, A-8700 Leoben, Austria
关键词
proficiency testing; uncertainty estimation; evaluation of performance; z-score; statistics;
D O I
10.1007/s007690000278
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A new composite score for the evaluation of performance of proficiency testing participants is proposed. The score is based on a combination of the z-score, uncertainty of a participant's measurement result and uncertainty of the proficiency testing scheme's assigned value. The use of such a composite score will allow evaluation not only of the participant's ability to determine an analyte in corresponding matrix, but also their understanding of the uncertainty in the obtained analytical result. The score may be helpful for the laboratory's quality system and for laboratory accreditation according to ISO 17025.
引用
收藏
页码:78 / 79
页数:2
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