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Geochemical investigation of alluvial sediments: validation of ICP-OES determination of heavy metals. A case study from the Utrata River Valley (central Poland) |
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| Authors: | Miša Biro Darja Kavšek Jakub Karasiński Piotr Szwarczewski Ewa Bulska Darinka Brodnjak Vončina |
| Affiliation: | 1. CIVIS d.o.o., 2000, Maribor, Slovenia 2. Regional Technological Centre Zasavje, Chemical-Technological Laboratory, 1420, Trbovlje, Slovenia 3. University of Warsaw, Faculty of Chemistry, Biological and Chemical Research Center, 02-089, Warsaw, Poland 4. Department of Geomorphology, Faculty of Geography and Regional Studies, University of Warsaw, 00-927, Warsaw, Poland 5. Faculty of Chemistry and Chemical Engineering, University of Maribor, 2000, Maribor, Slovenia |
| Abstract: | The development and validation of a reliable analytical procedure for the determination of selected metals (Cd, Cr, Cu, Pb, Zn and Mn) in sediments accumulated in the Utrata River (Poland) is described. The aqua regia extraction followed by inductively coupled plasma optical emission spectrometry (ICP-OES) was used for this purpose. The optimized analytical procedure was validated, and adequate quality control actions were implemented in order to provide reliable data. The precision under’ within-laboratory’ reproducibility conditions was estimated from duplicate analysis. Certified reference material (CRM) was used in order to evaluate the accuracy of the results regarding the sewage sludge amended soil CRM 143R. The detection limits for all elements of interest were well-below their content in the investigated sediment samples. The obtained reliable data could be used for assessment of the relationship between human economic activity in the past and the geochemical features of the sediments. |
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