Chemical-monitoring on-site exercises to harmonize analytical methods for priority substances in the European Union

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• 作者：Georg Hanke ; Giulio Mariani ; Sara Comero ; Robert Loos ; Giovanni Bidoglio
• 关键词：AP ; Alkyl phenol ; EQS Directive ; Environmental Quality Standard Directive (2008/105/EC) ; EQS ; Environmental Quality Standard ; LLE ; Liquid-liquid extraction ; LOQ ; Limit of quantification ; PAH ; Polycyclic Aromatic Hydrocarbon ; PBDE ; Polybromodiphenyl ether
• 刊名：TrAC Trends in Analytical Chemistry
• 出版年：2012
• 期刊代码：111_01659936
• 类别：ch
• 出版时间：June, 2012
• 卷：36
• 期：Complete
• 页码：25-35
• 文件大小：327 K

摘要

In support of the implementation of the Water Framework Directive (WFD, 2000/60/EC), three intercomparison exercises were carried out on European rivers (Po, Danube and Meuse) in order to assess the current state of monitoring methodologies. Laboratories from European Union (EU) Member States (MSs) were invited to gather at the selected EU river and sample together, each laboratory with its own method. Participants simultaneously sampled the river water and analyzed according to their protocols.

A selection of priority substances (PSs) [i.e. polybromodiphenyl ethers (PBDEs), polycyclic aromatic hydrocarbons (PAHs) and alkyl phenols (APs)] included in Directive 2008/105/EC were analyzed in standard solutions, extracts from river waters and river-water samples in order to investigate variabilities in different steps of the analytical process.

Concentrations measured in river samples using WFD-monitoring protocols showed that even some of the most challenging WFD PSs (e.g., PAHs, PBDEs and APs) can be measured at WFD-relevant concentrations with methods currently applied in MSs, but variability is still too great and not all laboratories meet required limits of quantification.

Hindrance to the implementation of the monitoring requirements is therefore not the technical feasibility of analysis at these concentration levels, but rather communication, knowledge exchange and harmonization among the laboratories involved.