Interlaboratory comparisons – demonstrating degree of equivalence |
| |
Authors: | R Becker I Nehls U Dorgerloh |
| |
Institution: | Federal Institute for Materials Research and Testing (BAM), Richard-Willst?tter-Strasse 11, 12489 Berlin, Germany e-mail: roland.becker@bam.de, DE
|
| |
Abstract: | The role of matrix reference materials in the process of demonstrating the degree of equivalence of measurement results obtained
from intercomparisons is outlined, reviewing exemplary selected experience gained at BAM regarding the determination of organic
contaminants in environmental matrices.
The specific characteristics of reference materials employed in the process of demonstrating equivalence between laboratories
in the course of proficiency testing as well as the development, comparison and validation of methods are elaborated. The
demand is for series of appropriately characterised samples which are fit for the purpose and it is seen from representative
examples that the utilisation of such tailor-made RM designed to tackle the specific need of an analytical problem dominates
over certified matrix reference materials in this context. Concluding, the role of certified matrix reference materials in
quality assurance is briefly looked at both from the user’s and providers’ points of view.
Received: 9 September 2002 Accepted: 16 December 2002
Presented at CERMM-3, Central European Reference Materials and Measurements Conference: The function of reference materials
in the measurement process, May 30–June 1, 2002, Rogaška Slatina, Slovenia
Correspondence to R. Becker |
| |
Keywords: | Certification Equivalence Method development Proficiency testing Reference materials |
本文献已被 SpringerLink 等数据库收录! |
|