Traceability in Analytical Chemistry
Published Online: 15 SEP 2006
Copyright © 2000 John Wiley & Sons, Ltd. All rights reserved.
Encyclopedia of Analytical Chemistry
How to Cite
Adams, F. 2006. Traceability in Analytical Chemistry. Encyclopedia of Analytical Chemistry. .
- Published Online: 15 SEP 2006
This article describes the concepts of traceability for chemical measurements (in chemical analysis) as they are defined at present, and their relation to analytical chemistry. Traceability concerns the direct or indirect linkage of analytical results to the international metric system of units [Système International (SI)], thereby showing a way to achieving comparability in chemical analysis. The metrological concepts to do this, as they have been developed up to the present, are critically evaluated. They concern the units in which analytical results should be expressed and the tools, such as primary reference methods and primary standards, certified reference materials (CRMs) and other reference materials (RMs), that can be used to increase the accuracy of results of analysis.