从近几年国内外报道的分析方法来看,离子交换分离的应用相对在减少,例如,1974年的《分析化学》杂志就没有一篇文章是提到离子交换分离的。常有这种说法:离子交换分离“慢”,不如萃取”,甚至认为“少慢差费”。我们应一分为二地看待离子交换分离。它具有独特的优点,如,分离不同电荷的离子,富集微量元素或测定盐类总浓度很简便,能分离性质很相似的金属离子,再生后可重复使用,对放射性物质的分离比较安全,等等。毛主席教导我们:“离开具体的分析,就不能认识任何矛盾 According to the analysis methods reported in China and other countries in recent years, the application of ion exchange separation is relatively reduced. For example, none of the articles in Analytical Chemistry in 1974 refer to ion exchange separation. It is often said that ion exchange separates “slowly” as it is extracted, “or even considers it” less expensive. “We should look at ion-exchange separations in one piece, which has the unique advantage of separating different charges Ions, enrichment of trace elements or determination of the total concentration of salts is very simple, the separation of similar nature of the metal ions, renewable after re-use, the separation of radioactive material safer, etc. Chairman Mao taught us: ”to leave specific Analysis, we can not understand any contradictions