MIPR燃料硝酸铀酰溶液中痕量氟、氯离子的测定

Determination of Trace Fluoride and Chloride in Uranyl Nitrate of MIPR's Fuel

采用水蒸气蒸馏法分离出硝酸铀酰溶液中的痕量F-、Cl-，并用离子色谱对F-、Cl-进行测定，对F-、Cl-分离条件和测定条件进行了讨论。该法的线性范围为0．04～0．3mg／L，线性相关系数大于0．999，相对标准偏差小于10％，样品的加标回收率为94％～97％。

The trace fluoride and chloride were separated from uranyl nitrate solution by steam distillation, determined by ion chromatography, and the separation conditions and measurement conditions were discussed in this paper. The linear range of the method is between 0.04 mg/L and 0.3 mg/L, the linear correlation coefficient is more than 0. 999, the relative standard deviation is less than 10%, and the sample added recovery is between 94% and 97%.