Development of Rapid Universal Method for Determination of Cs-137 in Different Environmental Samples by Means of Inorganic Ion Exchangers. Part of a Coordinated Programme on Radiological and Environmental Protection Studies in the

摘要

Using three synthetic inorganic ion exchangers of the same type - X sub 2 (YFe (CN) sub 6 ) (when X=alkali metal, Y=transition metal) one simple and universal rapid method for determination of Cs-137 in environmental samples was developed. The investigations carried out on synthesis. Next preparation and practical use in routine analysis showed that K(CoFe(CN) sub 6 ) (abbr.KCFC-II) is the most suitable for analysis of low level activities of Cs-137 in different environmental samples. The optimum conditions for routine use of KCFC-II in different separation schemes were found. Repeated analysis of Cs-137 in different environmental samples as well as analysis of IAEA-Reference Materials using our rapid and one classical method showed good agreement of the results. The proposed rapid method can be used in emergency situations and in routine radiation control. (Atomindex citation 14:791329)