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Abstract

A new composite score for evaluation the performance of proficiency testing participants is proposed. The score is based on combination of z-score, uncertainty of a participant's measurement result and uncertainty of the proficiency testing scheme's assigned value. The use of such composite score will allow to evaluate not only the participant's possibility to determine an analyte in corresponding matrix, but also his understanding of the uncertainty in the obtained analytical result. The score may be helpful for the laboratory's quality system and for the laboratory accreditation according to ISO 17025.

Additional information

Authors: KUSELMAN I, National Physical Laboratory of Israel (IL);PAPADAKIS I, JRC-Institute for Reference Materials and Measurements, Geel (BE);WEGSCHEIDER W, Department of General and Analytical Chemistry, University of Leoben, (AT)
Bibliographic Reference: An article published in: ACQUAL, the Journal of Accreditted Quality Assurance. Vol.6 (2001), pp. 78-93
Availability: An article published in: ACQUAL, the Journal of Accreditted Quality Assurance. Vol.6 (2001), pp. 78-93
Record Number: 200013364 / Last updated on: 2001-06-27
Category: PUBLICATION
Original language: en
Available languages: en
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