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萃取树脂作为一种化学分离手段,国外七十年代就有报导,近年国内兄弟单位研制合成了各类型萃取树脂,并相继用于分析工作中,P_(507)萃取树脂最近问世,给稀土元素的分离富集带来了佳音。该树脂是在P_(507)萃取色层的基础上研制而成的,并具有离子交换的优点。 本文研究了P_(507)萃取树脂分离稀土的条件及偶氮氯膦—PN与稀土元素的显色反应;拟定了一个分离效果良好、简便、灵敏度比偶氮胂Ⅲ高一倍的稀土总量的分析流程,可作为稀土分析的新方法。 实验部分
Extraction of resin as a means of chemical separation, foreign seventies have been reported in recent years, the domestic units of the brothers developed and synthesized various types of extraction resins, and have been used in the analysis of work, P_ (507) extraction resin recently come to the rare earth elements Separation of enrichment brought good news. The resin is developed on the basis of P_ (507) extraction color layer and has the advantages of ion exchange. In this paper, the conditions for the separation of rare earths from P_ (507) resin and the color reaction of chlorophosphonazo-PN with rare earth elements were studied. A new method was developed for the determination of rare earth elements Analysis of the process can be used as a new method of rare earth analysis. Experimental part