TY JOUR TI Cation-Exchange Isolation of Americium in the Analysis of Natural Waters by Alpha Spectrometry KW 241Am KW activity KW isotopic analysis KW natural waters KW sodium chloride brines KW cation exchange chromatography KW electrodeposition KW alpha spectrometry JO ANRI AU Poleschuk, A.M. AU Ovsyannikova, T.M. PY 2023 IS 0 PB Scientific-Production Enterprise “Dosa”