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dc.contributor.authorDavidson, C.M.-
dc.contributor.authorNordon, A.-
dc.contributor.authorGraham, J. U.-
dc.contributor.authorAjmone-Marsan, F.-
dc.contributor.authorBiasioli, M.-
dc.contributor.authorDuarte, A. C.-
dc.contributor.authorDíaz Barrientos, Encarnación-
dc.contributor.authorGrcman, H.-
dc.contributor.authorHodnik, A.-
dc.contributor.authorHossack, I.-
dc.contributor.authorHursthouse, A.S.-
dc.contributor.authorLjung, K.-
dc.contributor.authorMadrid Díaz, Fernando-
dc.contributor.authorOtabbong, E.-
dc.contributor.authorRodrigues, Sónia M.-
dc.date.accessioned2010-03-16T12:04:17Z-
dc.date.available2010-03-16T12:04:17Z-
dc.date.issued2007-02-22-
dc.identifier.citationInternational Journal of Environmental Analytical Chemistry 87: 589–601 (2007)en_US
dc.identifier.issn0306-7319-
dc.identifier.urihttp://hdl.handle.net/10261/22433-
dc.description.abstractA study has been conducted to assess the quality and comparability of measurement of aqua-regia-soluble cadmium, chromium, copper, iron, manganese, nickel, lead, and zinc in urban soils within a small cohort of European research laboratories specializing in soil science or environmental analytical chemistry. An initial survey indicated that highly variable levels of analytical quality control (e.g. use of certified reference materials) were routinely implemented in participant laboratories. When a set of soil samples—differing in metal contents and in characteristics such as pH and organic-matter content—were exchanged and analysed, approximately 20% of results differed from target values by more than 25%. A principal-component analysis was applied to data for chromium, copper, nickel, lead, and zinc, and proved successful in assessing overall laboratory performance. The study indicates that greater prominence needs to be given to quality assurance and control if comparable data are to be generated in international, collaborative research projects.en_US
dc.format.extent22195 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherTaylor & Francisen_US
dc.rightsclosedAccessen_US
dc.subjectUrban soilen_US
dc.subjectPotentially toxic elementsen_US
dc.subjectPrincipal-component analysisen_US
dc.titleQuality and comparability of measurement of potentially toxic elements in urban soils by a group of european laboratoriesen_US
dc.typeartículoen_US
dc.identifier.doi10.1080/03067310701297860-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://www.informaworld.com/10.1080/03067310701297860en_US
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