摘要
建立了核级钠中钙含量新的测定方法.在380℃,6×10-4Pa真空度下,蒸馏分离基体钠,蒸馏后溶解残渣中的钙并在电感耦合等离子原子发射光谱仪（ICP-AES）上分析.方法的分析范围为2.5～100μg/g,样品测量的相对偏差小于5%.本方法可应用于核级钠及钠厂净化工艺过程钠中钙的分析.
A new method for determing calcium in nuclear grade sodium is investigated. The matrix sodium is separated by vacuum distillation at the temperature of 380 ℃ and under the vacuum of 6 × 10^-4 Pa. The calcium in residue is dissolved and analyzed by ICP-AES. The analysis range of the method is 2.5 100μg/g. The relative deviation of determined samples is 〈5%. This method has been applied to determine concentration of calcium in nuclear grade sodium and sodium sample from purification technology procedure in sodium production factory.
出处
《核化学与放射化学》
EI
CAS
CSCD
北大核心
2006年第2期94-98,共5页
Journal of Nuclear and Radiochemistry
关键词
核级钠
钙
真空蒸馏
ICP-AES
nuclear grade sodium
calcium
vacuum distillation
ICP-AES
