Release:Bulletin of Tyumen State University. Ecology (№12). 2012
About the authors:Valeriy M. Shkinev, Cand. Chem. Sci., Associate Professor, Leading Researcher, Laboratory of Concentration Institute of Geochemistry and Analytical Chemistry, named after V.I. Vernadskiy, Russian Academy of Sciences
Abstract:Consideredmethodological aspectsseparation,fractionation andchemical analysis ofsoilmicro-andnanoparticles. Presented the examplesof use ofelectron microscopy tostudy thesoil colloids, micro- and nanoparticles. Shows the results ofdetermination ofchemical elementsmassspectral analysiswith inductivelycoupled plasmaand organic compoundsin aqueoussoil extractsobtained aftermembrane filtrationwitha pore size of 8,1.2 micronsand 100 kD forilluvial-ferruginous podzolic soils. Voltammetric methods identified ions of copper, lead, cadmium and zinc in the extracts after membrane filtration and compared with the content of organic matter with a high and low molecular weight. Analyzed the structural characteristics of humic substances in the samples from the photographs obtained with an electron microscope. The change in the quantitative and qualitative features of humic compounds in soil layers and finding the differences in the forms of metals in the samples.