SIMULTANEOUS DETERMINATION OF URANIUM AND THORIUM IN ORES BY INSTRUMENTAL EPITHERMAL NEUTRON-ACTIVATION ANALYSIS

被引:11
作者
GLADNEY, ES
OWENS, JW
STARNER, JW
机构
[1] University of California, Los Alamos Scientific Laboratory, Los Alamos, NM 87545
关键词
D O I
10.1016/S0003-2670(01)83821-6
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Rapid scanning of numerous rock samples when prospecting for uranium and thorium ores can be facilitated by using the shorter-lived nuclides. The samples are activated during short epithermal neutron irradiations and the 20-min activities of 239U and 233Th are observed instrumentally with a small Ge(Li) detector. The detection limits for uranium and thorium are less than 1 ppm and 20 ppm, respectively. © 1979.
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页码:121 / 127
页数:7
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