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钠和钾的离子交换分离,近年来已有不少文献报导。其中士桥正二等应用阳离子交换树脂(Amberlite IR-120)分离光学玻璃中的钠和钾,即将试液通过树脂柱,纳和钾被吸附后,用0.2N HCI洗脱钠,然后用0.5N HCl洗脱钾,将洗出液蒸干,除去游离HCl,最后用伏尔哈德(Volhard)法分别测定氯化钠和氯化钾的含量。蒙迺勉应用E. Merck lonexchanger I按照上法进行玻璃中钠和钾的测定,也获得满意的结果。本文在上述文献的基础上,应用国产阳离子交换树脂作水中钠和钾的分离,改用汞量法进行测定。据
Sodium and potassium ion exchange separation, in recent years, there are many reports in the literature. Among them, Shiqiao Bridge et al. Used Amberlite IR-120 to separate sodium and potassium in optical glass. After passing the solution through a resin column, sodium and potassium were adsorbed, sodium was eluted with 0.2N HCI and then washed with 0.5N HCl was used to elute potassium and the eluate was evaporated to dryness to remove free HCl. Finally, the contents of sodium chloride and potassium chloride were determined by the Volhard method. Meng Mian Mian application E. Merck lonexchanger I in accordance with the above method for the determination of sodium and potassium in glass, also obtained satisfactory results. Based on the above references, this paper uses the domestic cation exchange resin as the separation of sodium and potassium in water, using mercury instead. according to