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本工作研究建立了离子色谱法分析水溶液、一定浓度硝酸溶液以及含羟基脲的水溶液中铯的分析方法。离子色谱分析碱金属、碱土金属离子时,采用美国戴安公司CS12A色谱柱,样品中的H+浓度不能超过50mmol/L,否则分析结果偏低。由于HNO3为易挥发酸、羟基脲加热易分解,而且Cs+不存在水解和热稳定性差的问题,因此对于含硝酸样品,采用80～90℃蒸干样品,样品中如果含
This work established a method of ion chromatography analysis of aqueous solution, a certain concentration of nitric acid solution and hydroxylamine-containing aqueous solution of cesium analysis. Ion chromatography analysis of alkali metals, alkaline earth metal ions, using the United States Diana CS12A column, the sample concentration of H + can not exceed 50mmol / L, otherwise the analysis result is low. Since HNO3 is a volatile acid, hydroxyurea is easily decomposed by heating, and Cs + has no problem of hydrolysis and poor thermal stability. Therefore, for a sample containing nitric acid, the sample is evaporated to dryness at 80-90 ° C. If the sample contains