Title: An interlaboratory comparison on whole water samples
Authors: RICHTER JanineELORDUI-ZAPATARIETXE DEL AGUILA SAIOAEMTEBORG HAKANFETTIG InaCABILIC JulieALASONATI EnricaGANTOIS FannySWART ClaudiaGOKCEN TANERTUNC MURATBINICI BURCURODRIGUEZ-CEA AndresZULIANI TeaGONZALES-GAGO AdrianaPROFROCK DanielNOUSIAINEN MarjaanaSAWAL GeorgeBUZOIANU MirellaPHILIPP Rosemarie
Citation: ACCREDITATION AND QUALITY ASSURANCE vol. 21 p. 121-129
Publisher: SPRINGER
Publication Year: 2016
JRC N°: JRC101330
ISSN: 0949-1775
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC101330
DOI: 10.1007/s00769-015-1190-8
Type: Articles in periodicals and books
Abstract: The European Water Framework Directive 2000/60/EC requires monitoring of organic priority pollutants in so called “whole water” samples, i.e. in aqueous non-filtered samples that contain natural colloidal and suspended particulate matter. Colloids and suspended particles in the liquid phase constitute a challenge for sample homogeneity and stability. Within the joint research project ENV08 “Traceable measurements for monitoring critical pollutants under the European Water Framework Directive 2000/60/EC” whole water test materials were developed by spiking defined amounts of aqueous slurries of ultra-finely milled contaminated soil or sediment and aqueous solutions of humic acid into a natural mineral water matrix. This paper presents the results of an European-wide interlaboratory comparison (ILC) using this type of test materials. Target analytes were tributyl tin, polybrominated diphenyl ethers and polycyclic aromatic hydrocarbons in the ng/L concentration range. Results of the ILC indicate that the produced materials are sufficiently homogeneous and stable to serve as samples for e.g. proficiency testing or method validation. To our knowledge, this is the first time that ready to use water materials with a defined amount of suspended particulate and colloidal matter have been applied as test samples in an interlaboratory exercise. These samples meet the requirements of the European Water Framework Directive. Previous proficiency testing schemes mainly employed filtered water samples fortified with a spike of the target analyte in a water-miscible organic solvent.
JRC Directorate:Health, Consumers and Reference Materials

Files in This Item:
There are no files associated with this item.


Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.