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  • 1 Nuclear Research Institute 250 68 Řež Czechoslovakia
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Abstract  

A rapid extraction separation of Ba2+ from Sr2+ with a nitrobenzene solution of sodium dicarbollylcobaltate /NaDCC/ in the presence of polyethylene glycol having mean relative molecular weight 400 /PEG 400/ and tetrasodium salt of trans-cyclohexane-1,2-diamine-N,N,N,N-tetraacetic acid /Na4L/ was developed. The separation factor Ba/Sr was approximately 104.