Amalgam exchange separation of radiothallium.
A method is presented for the rapid separation of radiothallium. The solution is made basic by addition of ammonia, then sodium fluoride and ethylenediamine are added and the mixture is shaken with 3% thallium amalgam. A rapid exchange takes place and the bulk of the activity is concentrated in the amalgam. The amalgam is diluted with clean mercury and shaken with acidic cobalt nitrate solution which back-extracts thallium. About 90% of the thallium activity is recovered.
Hahn
R B
RB
Chemistry Department, Wayne State University, Detroit, Michigan 48202, U.S.A.
Kanapilly
G M
GM