Laboratory Products

Rapid Determination Of Measurement Uncertainty In Analytical Chemistry

Mar 23 2007

Author: Wolf-Dieter Beinert, Matthias Rösslein, Roman Hedinger, Sergio Rezzonico, Veronika R. Meyer, Bruno Wampfler on behalf of Unassigned Independent Article

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In order to be able to evaluate analytical results properly, one has to know the degree of uncertainty involved with the methods employed. Determination of measurement uncertainty is now being demanded by international standards authorities (e.g. ISO/IEC/EC 17025 (2005)). The UncertaintyManager® is a new software tool for the rapid determination of the measurement uncertainty of analytical results according to international standards Eurachem / CITAC Guide "Quantifying Uncertainty in Analytical Measurement" (2nd edition) and "ISO Guide to the Expression of Uncertainty in Measurement" (GUM). The software, based on a substantial database, comprises numerous functions that facilitate data entry, enable critical parameters to be visualized, calculate the measurement uncertainty and the compilation of reports. It also displays information on the contribution to uncertainty of the various parameters involved; this helps to minimize the measurement uncertainty of both existent and new analytical methods. Using the Uncertainty Manager software, the measurement uncertainty of a particular set of analytical results can be completely evaluated in short time.

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