Interlaboratory Proficiency Test 04/2019 - Metals in natural water and sediment

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dc.contributor.author Leivuori, Mirja
dc.contributor.author Koivikko, Riitta
dc.contributor.author Sara-Aho, Timo
dc.contributor.author Näykki, Teemu
dc.contributor.author Tervonen, Keijo
dc.contributor.author Lanteri, Sari
dc.contributor.author Väisänen, Ritva
dc.contributor.author Ilmakunnas, Markku
dc.date.accessioned 2019-08-16T05:23:21Z
dc.date.available 2019-08-16T05:23:21Z
dc.date.issued 2019
dc.identifier.isbn 978-952-11-5070-8
dc.identifier.issn 1796-1726
dc.identifier.uri http://hdl.handle.net/10138/304666
dc.description.abstract Proftest SYKE carried out the proficiency test (PT) for analysis of elements in ground and domestic waters as well as in sediment in April 2019. The measurands for the synthetic sample and domestic and ground water samples were: Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, Ti, U, V, and Zn. In addition to the aforementioned, also measurands Ntot, Ptot, Stot, TC, and dry weight (Drw) were analysed from the sediment sample. In total 20 participants joined in the PT. In this proficiency test 91 % of the results valuated based on z score were satisfactory when deviation of 10–25 % from the assigned value was accepted. From the results evaluated with En scores, 90 % were satisfactory. Basically, either the metrologically traceable concentration, the calculated concentration, the robust mean or the median of the results reported by the participants was used as the assigned value for the measurands. Warm thanks to all the participants of this proficiency test! fi
dc.language.iso en fi
dc.publisher Finnish Environment Institute fi
dc.relation.ispartofseries Reports of the Finnish Environment Institute 35/2019 fi
dc.title Interlaboratory Proficiency Test 04/2019 - Metals in natural water and sediment fi
dc.type Kirja fi
dc.identifier.laitoskoodi Suomen ympäristökeskus fi

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