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U.S. Department of Energy
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QUANTITATIVE RADIOCHEMICAL ANALYSIS BY ION EXCHANGE. V. CALCIUM, STRONTIUM, AND BARIUM

Technical Report ·
OSTI ID:4222344
A procedure was developed for the separation of calcium, strontiums and barium from the rare earths and from each other. This is similar to the ion- exchange method of Baerg and Bartholomew which elutes cerium, lanthanums strontiums and barium sequentially from a Dowex-50 Xl2, 87 deg C column using solutions of ammonium alpha -hydroxyisobutyrate. By lowering the crosslinkage of the resin to 8% and changing the concentration and pH, it was possible to accomplish the analytical separation at room temperature. Column runs with cerium-144, calcium-45, strontium-85, and barium-133 tracers showed that the recoveries were quantitative. No significant cross contamination could be detected by gamma-ray spectrometer measurements. The determination of barium and strontium was then included in the sequential radiochemical analytical scheme for mixed fission product and actinide elements. Rhodium and ruthenium radionuclides were found to be contaminants. These were eliminated by a pre-ion exchange ruthenium distillation and the adsorption of rhodium from 0.1 N hydrochloric acid on an anion exchange column (auth)
Research Organization:
Naval Radiological Defense Lab., San Francisco
NSA Number:
NSA-13-017838
OSTI ID:
4222344
Report Number(s):
USNRDL-TR-341
Country of Publication:
Country unknown/Code not available
Language:
English