59铁和195金的阴离子氯络合物在大孔网状非离子树脂上的吸附
Adsorption of anionic chloro complexes of 59Fe and 195Au on non-ionic resins of macro-reticular type.
作者信息
Watari K, Imai K, Ishikawa M, Izawa M
出版信息
Radioisotopes. 1985 Jun;34(6):313-6. doi: 10.3769/radioisotopes.34.6_313.
Adsorption behavior of 59Fe and 195Au on the non-ionic macro-reticular resin, Amberlite XAD-7 is studied. Distribution coefficients (Kd) for both nuclides in hydrochloric acid or lithium chloride solutions above 6M are particularly high. In nitric acid solution below 2M, 195Au is highly adsorbed on the resin but 59Fe is negligible over any concentrations. This resin did not adsorb other important radionuclides such as 54Mn, 60Co, 65Zn, 90Sr, 106Ru, 137Cs and 144Ce at all. Based on such peculiar adsorption behavior, application to selective separation and determination of radio and stable iron in sea water was also studied.
研究了59Fe和195Au在非离子大孔树脂Amberlite XAD - 7上的吸附行为。在浓度高于6M的盐酸或氯化锂溶液中，两种核素的分配系数（Kd）特别高。在浓度低于2M的硝酸溶液中，195Au被树脂高度吸附，但59Fe在任何浓度下的吸附量都可忽略不计。这种树脂根本不吸附其他重要的放射性核素，如54Mn、60Co、65Zn、90Sr、106Ru、137Cs和144Ce。基于这种特殊的吸附行为，还研究了其在海水中放射性铁和稳定铁的选择性分离与测定中的应用。
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