Extraction of strontium from calcium by sodium dicarbollylcobaltate and 15-crown-5 in a two-phase water-nitrobenzene system |
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| Authors: | P. Vaňura E. Makrlík |
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| Affiliation: | (1) Department of Analytical Chemistry, Prague Institute of Chemical Technology Technická 5, 166 28, Prague 6, Czech Republic;(2) Institute of Interdisciplinary Studies, University of West Bohemia Institute of Interdisciplinar Studies Husova 11, 306 14, Pilsen, Czech Republic |
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| Abstract: | A rapid extraction of trace amounts of strontium from calcium with a nitrobenzene solution of sodium dicarbollylcobaltate (NaDCC) in the presence of 15-crown-5 and the tetrasodium salt of ethylenediamine-N,N,N",N"-tetra-acetic acid (Na4L) in the aqueous phase was developed. The separation factor a(Sr/Ca) was approximately 105. |
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