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在利用DTPA或NTA为螯合剂的离子交换排代法中,相应条件下的相邻元素A和B在阳离子交换树脂与水溶液之间的分离因数,对于计算最小排代距离和对流出曲线进行理论分析是必不可少的。分离因数的定义为:
In the ion exchange displacement method using DTPA or NTA as the chelating agent, the separation factors of adjacent elements A and B in the corresponding conditions between the cation exchange resin and the aqueous solution are used to calculate the minimum displacement distance and the outflow curve theory Analysis is essential. The separation factor is defined as: