Title: Report of the Inter-Laboratory Comparison on the 15+1 EU Priority PAHs
Authors: SIMON RUPERTWENZL THOMAS
Publisher: OPOCE
Publication Year: 2007
JRC Publication N°: JRC40602
ISSN: 1018-5593
Other Identifiers: EUR 22945 EN
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC40602
Type: EUR - Scientific and Technical Research Reports
Abstract: The two test materials of the inter-laboratory comparison test were dispatched begin of July 2006. Each participant received two liquid smoke condensate test materials to be analysed for the 15+1 EU priority polycyclic aromatic hydrocarbons (PAHs). In total 28 sets of samples were sent to participating laboratories in 13 countries. Of these 28 participants 26 (93%) reported back results for at least one analyte. Both test materials contained the 15+1 EU priority PAHs. The assigned value (X) for each analyte was calculated from the participant's results applying robust statistics. The target standard deviation (sp) was calculated using the modified Horwitz equation as proposed by Thomson [1]. The resulting sp was then used in conjunction with the assigned value to derive z-scores from the participant's results.
JRC Institute:Institute for Reference Materials and Measurements

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