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Updated: Jun 28, 2026

Investigations on the Ga(III) Complex of EOB-DTPA and Its 68Ga Radiolabeled Analogue
Published on: August 17, 2016
Amalgam exchange separation of radiothallium
1Chemistry Department, Wayne State University, Detroit, Michigan 48202, U.S.A.
Abstract:
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.
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