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近来关于合成无机离子交换剂的性能和应用已有评述.用12—杂多酸铵盐浸泡过的滤纸进行纸电泳和纸层析分离碱金属离子已有若干报告.Schroed-er和Prasilova等分别用磷钼酸铵和磷钨酸铵纸层析对某些多价裂变产物包括~(144)Ce、~(144)Pr、~(90)Y(~(91)Y)、~(90)Sr(~(89)Sr)和~(137)Cs等的交换性能和分离条件也做过某些工作.而铀、钍和稀土元素在载有磷钨酸铵的纸电泳分离,迄今未见报导.本文将磷钨酸铵固着于新华滤纸上做成离子交换纸,以不同浓度和pH值的氯化铵为电解质溶液,对铀、钍和稀土元素的电泳行为进行研究.提出了分离条件.
There have been recent reviews on the performance and applications of synthetic inorganic ion exchangers. There have been several reports on paper electrophoresis and paper chromatography for the separation of alkali metal ions by filter paper impregnated with ammonium 12-heteropolyacid, and Schroed-er and Prasilova, respectively Some multivalent fission products including ~ (144) Ce, ~ (144) Pr, ~ (90) Y ~ (91) Y and ~ (90) Y were obtained by ammonium phosphomolybdate and ammonium tungstophosphate paper chromatography Some work has also been done on the exchange performance and separation conditions of Sr (~ (89) Sr) and ~ (137) Cs, etc. Uranium, thorium and rare earth elements have been separated by electrophoresis on paper containing ammonium phosphotungstate Reported in this paper ammonium tungstophosphate immobilized on Xinhua filter paper made of ion exchange paper, with different concentrations and pH value of ammonium chloride as electrolyte solution, uranium, thorium and rare earth elements electrophoresis behavior was proposed separation conditions .