Accumulation of chemical elements in the roots of <I>Euphorbia fischeriana</I> Steudel in the Shilka river basin (Transbaikal region)

Background . Euphorbia fischeriana Steudel is used in traditional and herbal medicine Russia China. Its roots contain 241 chemical components, but there not enough knowledge about the plant’s elemental composition. Concentrations of elements plants have an impact effectiveness medical products. Materials methods The research was conducted Transbaikal region. Plants were analyzed using ICP-MS Elan 9000 mass spectrometer (Canada). method measuring metal content solid objects, PND F 16.1:2.3:3.11-98 used. Chemical analysis soil performed at Kostromskaya State Station Agrochemical Service. obtained data statistically processed Microsoft Excel software. Results accumulation macro- microelements plant studied (Ca, P, Mg, Na, Fe, Mn, Zn, Mo, Cr, Co, Se, Cu, B, Ni, V, As, Li, Pb, Ba, Bi, Cd, Hg, Be, Sb, Rb, Zr, Sn, Ag, W, Sr, Ti). whose concentrations significantly higher or, contrariwise, lower than clarke terrestrial identified. Accumulations Ti, Sb descending order 2–14 times plants. especially V Cu E. low (0.01–5% clarke). concentration As test areas exceeded threshold limit value for medicinal herbage products (OFS.1.5.3.0009.15). Conclusion. study made it possible to find deficiencies a number vital roots, discrepancy between tested increased toxic potentially compared with clarke.