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Proficiency Test SYKE 10/2011 - Heavy metals in surface waters
ISBN (pdf):978-952-11-4009-9 
Julkaistu:2012 
Julkaisusarja ja numero:Reports of the Finnish Environment Institute 11/2012 
Kieli:englanti 
Kustantaja:Finnish Environment Institute 
Saatavuus (pdf):http://hdl.handle.net/10138/39761 
Sivumäärä:79 
Tekijät:Mirja Leivuori; Kaija Korhonen-Ylönen; Timo Sara-Aho; Teemu Näykki; Keijo Tervonen; Sari Lanteri; Markku Ilmakunnas  

48.00 €

Proftest SYKE carried out the proficiency test (PT) for the analysis of elements in waters in November 2011–January 2012 in the frame of the joint PT-WFD program 2011. The principal aim of the proficiency test was to test the chemical analysis of priority and other substances in the context of chemical monitoring for the European Water Framework Directive (WFD), especially for compliance of surface waters with Environmental Quality Standards (EQS). The main measurements concerned the priority substances: Cd, Hg, Pb and Ni. Additionally it was possible to test voluntary elements: Al, As, B, Co, Cr, Cu, Fe, Mn, Mo, Sb, Se, V and Zn. The sample types were artificial and natural surface water. In total of 35 laboratories participated in the proficiency test. Basically, the metrologically traceable concentration, calculated concentrations or the robust mean of the results reported by the participant were used as the assigned values for measurements. The evaluation of the performance of the participants was carried out using z score. In total, 93 % of the total data in this proficiency test were satisfactory when the deviations of 10–25 % from the assigned values were accepted.


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