Traceability of measurements still often remains a non-operational notion for end-user chemists. A practical project, sponsored by the French Ministry of Research, has been conducted to evaluate and to demonstrate possible benefits of the implementation of a metrological structure for improvement of the quality of water analyses. LNE (Laboratoire National d'Essais) was in charge of the build up of the traceability chain in a concrete case of determination of some heavy metals (cadmium and lead) in a groundwater. Pure solutions for calibration and a matrix RM have been certified by LNE and then used by 46 labs (mainly French) in a inter-laboratory study. Results have shown a measurable bias in lead analysis in the groundwater for all methods in routine use by laboratories. This project has demonstrated the interest of a metrological approach for method calibration, method validation and estimation of measurement uncertainty. © 2005 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Charlet, P., & Marschal, A. (2005). Benefits of the implementation of a metrological structure for water analyses. In Traceability in Chemical Measurement (pp. 245–252). Springer Berlin Heidelberg. https://doi.org/10.1007/3-540-27093-0_40
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