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Improvements in the determination of eight polycyclic aromatic hydrocarbons through a stepwise interlaboratory study approach |
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| Authors: | P de Voogt J Hinschberger E A Maier B Griepink H Muntau J Jacob |
| Institution: | (1) Department of Environmental and Toxicological Chemistry Amsterdam Research Institute for Substances in Ecosystems, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands;(2) Standards, Measurements and Testing, Community Bureau of Reference, Commission of the European Communities, 200 Rue de la Loi, B-1049 Brussels, Belgium;(3) Standards, Measurements and Testing, Community Bureau of Reference, Commission of the European Communities, 200 Rue de la Loi, B-1049 Brussels, Belgium;(4) Joint Research Centre, Commission of the European Communities, I-21020 Ispra, Italy;(5) Biochemisches Institut für Umweltcarcinogene, Lurup-4, D-22927 Grosshansdorf, Germany;(6) Present address: Facultad de Ciencias, Dpt. de Quimica Analitica, University of Córdoba, E-14004 Córdoba, Spain |
| Abstract: | A summarising account of a systematic stepwise approach based on interlaboratory studies carried out by a number of laboratories from European Union and EFTA countries is given. This approach has been designed to improve the analytical state of the art in the determination of selected polycyclic aromatic hydrocarbons in different environmental matrices. The approach resulted in a certification exercise to produce a sewage sludge as Certified Reference Material (CRM). The results of the programme showed that HPLC and GC are equally reliable for PAH analysis at submicrogram to microgram per gram levels in various environmental matrices. Major improvements were achieved during the programme, resulting in reduced coefficients of variation and between-laboratory differences. Several recommendations emerging from the programme experience are presented. |
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