Rapid Determination of Ytterbium in Aqueous Solutions and in Thulium Oxide by Neutron Activation
In analyses of aqueous samples, the coefficient of variation of a single analysis was 5%, the content of ytterbium was 0.064%. Since interfering activities were practically negligible and activities produced were on a level very suitable to the counter used, this value was felt to be the approximate lower limit of the coefficient of variation. In thulium oxide samples the resolution of the decay curve showed two components: 6 sec and 1.3 min. The latter was identified as dysprosium-165m. Results of analyses of thulium oxide samples as fine powder are tabulated. It was concluded from decay curves that when a thulium oxide powder contains 6 ppm dysprosium, the lower limit of ytterbium detection is about 0.01%. (P.C.H.)
- Research Organization:
- Government Chemical Industrial Research Inst., Tokyo
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-029151
- OSTI ID:
- 4840924
- Journal Information:
- Nature (London), Journal Name: Nature (London) Journal Issue: 4793 Vol. 191; ISSN 0028-0836
- Publisher:
- Nature Publishing Group
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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