摘要
采用放射化学分离方法(KMnO_4氧化、蒸馏、Na_2S+NaOH作吸收剂、CuS共沉淀载带)从地质和环境样品中分离出微量的Os和Ru。本方法对Rb、Sc、Hf、Ca、Ta、Fe、Cr、Co、Ir、Pt、Sb、Se等去污良好,对Os和Ru的回收率分别大于90％和95％,从而显著提高了中子活化分析法测量地质和环境样品中Os和Ru的灵敏度。
In this paper a radiochemical separation procedure has been set up. Os and Ru of 10- 9 level in geological and environmental samples were distilled with KMnO4, collected in Na2S + NaOH solution and co-precipitated with CuS. In this procedure Rb, Sc, Hf, Ca, Ta, Fe, Cr, Co, Ir, Pt, Sb and Se have no interference. The chemical yields of Os and Ru were more than 90% and 95%, respectively. It is effective for determining Os and Ru in geological and environmental samples.
出处
《核化学与放射化学》
CAS
CSCD
北大核心
1992年第4期239-245,共7页
Journal of Nuclear and Radiochemistry
基金
国家自然科学基金
关键词
中子活化分析
锇
钌
地质样品
Osmium, Ruthenium, Neutron activation analysis, Geological and environmental samples.
