| Abstract: | Various methods of separating technetium from molybdenum anhydride irradiated with thermal neutrons in a nuclear reactor have been investigated. A method has been devised and tested In laboratory conditions for the concentration and separation of technetium, based on the co-precipitation of technetium with difficultly soluble phosphates and on Chromatographic purification. Milligram quantities of Tc99 have been obtained by this method. The separated technetium has been identified by means of spectrum analysis, and the absolute activity and maximum energy of its ß -radiations have also been measured. Some chemical properties of technetium have been studied.Presented on March 9, 1957 at the All-Union Radiochemistry Conference in Leningrad. |
