Report on Intercomparison IAEA/Soil-7 of the Determination of Trace Elements in Soil

摘要

The report presents results of a laboratory intercomparison of the determination of concentration of trace elements in a sample of soil organized by IAEA's Analytical Quality Control Service. 56 laboratories in 25 countries returned results based on 999 laboratory mean values of 59 elements. The aim of this exercise was to enable the participating laboratories to check their analytical performance and to establish the concentration level of as many trace elements as possible for certification purposes. The analytical methods of activation analysis, atomic absorption, X-ray fluorescence and atomic emission were predominantly used for element determination. The number of outlying results was moderate (12%). The analytical results have enabled to certify the concentration of 28 trace elements in the soil material. (Atomindex citation 15:051886)