用萃取色层法分离钍。
萃取色层法净化后的溶液，满足制备高纯钴的要求。
The solution refined by extraction chromatography process could satisfy the requirement for preparing high-purify cobalt.
建立了准确测定常量铀中微量镎的方法。方法包括萃取色层法分离和质谱法测量。
The method including the process of extraction chromatography and the mass spectrum measurement for the exact analysis of micro neptunium in the existence of large quantity of uranium is established.
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