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稀土元素的分离富集方法除萃取法、沉淀法外,离子交换分离富集技术是目前常用的方法。本文拟定了偶氮氯膦—mA螯合形成纤维分离富集、偶氮胂Ⅲ分光光度法测定地质试样中痕量稀土总量。并研究了吸附酸度、柱高、溶液流速等对分离富集痕量稀土元素的影
In addition to extraction and precipitation methods, the separation and enrichment of rare earth elements ion exchange separation and enrichment technology is the commonly used method. In this paper, chlorophosphonazo-mA was chelated to form fibrin seperation and enrichment, and the arsenazo Ⅲ spectrophotometry was used to determine the total amount of trace rare earths in geological samples. The effect of adsorption acidity, column height, solution flow rate on the separation and enrichment of trace rare earth elements