The radiochemical separation of indium by an amalgam-exchange technique has been critically evaluated for the aqueous hydrogen bromide system. The efficiency and contamination of the separation has been studied using tracers of 19 different representative elements. Yields of contaminating elements are reduced in most cases to less than 0.1 %, and indium yields are usually above 95 %. The procedure requires no special equipment, and takes about 11 min overall. A number of factors affecting the separation have been studied and improved.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/32327/1/0000397.pd
