Abstract

高純度タンタル中の希土類元素の定量を放射化分析法で試みた, 放射化断面積の大きいタンタルによる強い放射能の影響を除去するために, 0.15Mフッ酸―9M塩酸の混酸溶液中のタンタルを, 10%N-ラウリル (トリアルキルメチル) アミンーべンゼン溶液で除去後, 非放射性希土類元素で放射化された希土類元素を共沈分離する方法を検討した, この結果タンタル中の希土類元素を高収率, 迅速に分離できる諸条件が明らかにされた。

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