摘要
本文主要研究了以0.25mol/L三辛基氧化膦(TOPO)的正庚烷溶液作固定相,用高速逆流色谱(HSCCC)去除市售的几种硝酸和盐酸中的铀,制备了铀含量极低的盐酸和硝酸。结果表明,纯化后酸中铀的含量均小于1pg/mL,与超纯水及采用等温蒸发和亚沸蒸馏制得超纯酸中铀的含量相当。
The high-purity nitric acid and hydrochloric acid were prepared by high-speed countercurrent chromatography（HSCCC）, using the 0.25 mol/L tri-octyl-phosphorous oxide in heptane as the stationary phase, and the normal nitric acid and hydrochloric acid were used as mobile phase. The results show that the uranium contained in the acid purified is reduced to lower than 1 pg/mL, which is close to the content of uranium in the high-purity water and the high-purity acid prepared by isothermal evaporation and sub-boil distillation.
出处
《核技术》
EI
CAS
CSCD
北大核心
2006年第3期214-220,共7页
Nuclear Techniques
