Metrological Aspects in Analytical Chemistry: Determination of Metals in Waters

The monitoring of water quality in the EU is described in detail and regulated by Directives of the European Commission and the Parliament, which underlines the importance of the quality of water (both potable and non potable). Analysis of trace concentrations of contaminants in water, including metals, still presents challenges to demonstrate the quality and comparability of results. The article provides a detailed overview of the procedures that laboratories can use to assess the reliability of the results obtained by a particular measurement procedure. Emphasis is placed on three basic pillars: metrological traceability, validation and measurement uncertainty. Subsequently continuous evaluation is carried out using internal and external quality management measures. Regional aspects specific for the Czech Republic are also mentioned.

Automated summary

This article provides a detailed overview of the monitoring and regulation of water quality in the EU, highlighting the importance of water quality. The analysis of trace contaminants in water, such as metals, still poses challenges in demonstrating reliability and comparability of results. The article presents procedures for laboratories to assess the reliability of measurement results, focusing on metrological traceability, validation, and measurement uncertainty. Continuous evaluation is carried out using internal and external quality management measures, with regional aspects specific to the Czech Republic also mentioned.