RAPID RADIOCHEMICAL SEPARATION AND ACTIVATION ANALYSIS OF RARE EARTH ELEMENTS
Rapid separation of different rare earth elements was effected in ten to sixteen minutes with a small cation exchange resin column and alpha -hydroxy- isobutyric acid as eluent. Individual rare earth fractions could be obtained with controlled eluent concentrations and pH. Good separation with peak to valley ratio between 50 and 100 in the elution curves was accomplished in about ten minutes for rare earth elements with atomic numbers differing by three or more. Less complete but useable separations of adjacent rare earths such as gadolinium and terbium could be made in about sixteen minutes. This rapid separation procedure was coupled with gamma spectrometry for determination of rare earths in samples such as monazite and the U. S. Geological Survey samples G- 1 and W-1 by activation analysis. The applicability of this method for the entire group was investigated by separating rare earth elements ranging from praseodymium to ytterbium. (auth)
- Research Organization:
- Michigan. Univ., Ann Arbor. Dept. of Chemistry
- NSA Number:
- NSA-17-035634
- OSTI ID:
- 4656483
- Report Number(s):
- TID-19094; CONF-14-28
- Country of Publication:
- United States
- Language:
- English
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