Precise determination of rare earth elements in rocks by neutron activation analysis |
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| Authors: | Y. Terakado T. Fujitani J. Takada |
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| Affiliation: | (1) College of Liberal Arts, Kobe University, Tsurukabuto 1-2-1, 657 Nada, Kobe, (Japan);(2) Faculty of Liberal Arts, Marine Technical College, Nishikura-cho, 659 Ashiya, (Japan);(3) Research Reactor Institute, Kyoto University, Kumatori-cho, 590-04 Osaka, (Japan) |
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| Abstract: | ![]()
A pre-irradiation group separation method has been developed for the neutron activation analysis of rare earth elements (REE) and Ba in silicate rocks. REE and Ba were quantitatively separated from other elements by cation exchange column method. The chemical yield of each separation was monitored with Pr added to the sample powder before decomposition. The accuracy and precision were tested by repeated analyses of JB-1 and one analysis of BCR-1. In addition, it was found that REE distribution in a granitic rock powder was inhomogeneous and therefore special care must be taken for the sampling of granitic rock powders. |
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