真空-蒸馏法分析钾中的氧  

Determination of oxygen in potassium by vacuum distillation

作　　者：俞晓琛[1] 文希孟[1] 谢淳[1] 贾云腾[1] 

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《核科学与工程》2009年第2期123-126,共4页Nuclear Science and Engineering

摘　　要：建立钾中氧的一种分析方法。在真空度为6×10^(-4)Pa,温度为250℃下,通过蒸馏的方法去除钾的基体,蒸馏残渣溶样后用容量法进行分析,样品测量的相对平均偏差小于15%。该方法已应用于快堆Na-K合金合成过程中钾中氧的分析,今后也可应用于钾净化过程中钾中氧的分析。A new method for determining oxygen in potassium is investigated. The potassium matrix is separated by vacuum distillation at the temperature of 250 ℃ and under the vacuum of 6 × 10^-4 Pa. The residue is dissolved. Volumetric analysis is used to analyse oxygen in the residue. Average deviation of determined samples is〈15%. This method has been applied to determine the concentration of oxygen in potassium when Na-K alloy was compounded. When potassium is cleaned, this method can also be applied to determine oxygen in potassium.

关 键 词：钾 氧 真空蒸馏 

分 类 号：TL32[核科学技术—核技术及应用]