Determination of rare-earth elements in rock samples by neutron activation analysis with a lithium-drifted germanium detector after chemical group-separation |
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| Authors: | Kenji Tomura Hideo Higuchi Nobuyoshi Miyaji Naoki Onuma Hiroshi Hamaguchi |
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| Institution: | The Institute for Atomic Energy, Rikkyo University, YokosukaJapan;Department of Chemistry, Faculty of Science, University of Tokyo, Hongo, TokyoJapan |
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| Abstract: | A lithium-drifted germanium detector combined with chemical group-separation has been utilized for the determination of rare-earth elements (La, Ce, Nd, Sm, Eu, Gd, Tb, Tm, Yb and Lu) in rock samples by neutron activation. This procedure has the advantage of a low background level which cannot be attained in the non-destructive method. The combination of the Ge(Li) detector and chemical group-separation also offers a distinct simplification in the correction of contributions from other nuclides. For optimum utility of a Ge(Li) detector in neutron activation analysis, chemical group-separations are recommended. |
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