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用偶氮胂M作淋洗剂,其流出液可直接用光度法测定铀(VI)、钍、锆、钪和稀土。在多孔性阳离子交换树脂上,研究了这些离子在偶氮胂M溶液中的离子交换平衡,并测量了其吸附率。研究了不同介质(水、醋酸-醋酸钠和盐酸-醋酸钠缓冲液)的影响,并探讨了影响的机理。提出了阳离子交换分离锆、钪、稀土;锆、铀、稀土;钍、钪、稀土以及毫克量铀或钍中微量稀土和光度法直接测定的新方法,方法较简便快速。用于矿石分析,结果比较满意
With arsenazo M as eluent, the effluent can be measured directly with photometric uranium (VI), thorium, zirconium, scandium and rare earth. On porous cation exchange resins, the ion exchange equilibrium of these ions in arsenazo M solution was studied and their adsorption rates were measured. The effects of different media (water, acetic acid-sodium acetate and hydrochloric acid-sodium acetate buffer) were investigated and the mechanism of influence was explored. A new method for direct determination of trace rare earths and photometry in zirconium, scandium, rare earth, zirconium, uranium and rare earths, thorium, scandium, rare earths and milligram quantities of uranium or thorium is proposed. The method is simple and rapid. For ore analysis, the results are satisfactory