- 作者: 潘貫; 鄭華生
- 作者服務機構: Contribution from the Research Institute of Chemistry, National Taiwan University
- 中文摘要: The electromigration behavior of 60Co, 90Sr,90Y,134Cs,144Ce and 152Eu (+154Eu) as a function of pH in 1% citric acid solution has been studied. The cesium ion which migrated toward cathode decreased its mobility linearly as the pH increased. The strontium ion had the electromigration behavior similar to cesium ion up to pH 5 and changed the direction of migration to the anode at pH4.5; the cobalt and rare earth ions, having the similar behavior, changed their ionic charges at pH's 2.2 to 3.2, respectively. By taking adventage of such behavior, cesium could be separated from bi- and tervalent metal ions at any pH value. whereas yttrium could be separated from strontium ions, and rare earth from cobalt ions only at low pH values.
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