Zh. D. Dashieva - Post-graduate Student, East Siberia State University of Technology and Management (Buryatia, Ulan-Ude). E-mail: Zhargalma01152a@mail.ru
T.P. Antsupova - Dr. Sc. (Biol.), Professor, East Siberia State University of Technology and Management (Buryatia, Ulan-Ude). E-mail: antsupova-bot@mail.ru
E.V. Chuparina - Ph.D. (Chem.), A.P. Vinogradov Institute of Geochemistry SB RAS (Irkutsk). E-mail: lchup@igc.irk.ru; aisu@igc.irk.ru
T.S. Ajsueva - Ph.D. (Chem.), A.P. Vinogradov Institute of Geochemistry SB RAS (Irkutsk)