摘要
建立了高放废液中^(147)Pm的测定方法。用HDEHP萃取稀土,再用HDEHP萃淋树脂柱分离AM和稀土。然后用高效液相色谱法将^(147)Pm从Eu、Ce等其它稀土中分离出来,用液体闪烁法测量^(147)Pm的放射性活度。
A extraction-spectrophotometric method for the determination of iron in the HLLW is developed. In the medium of hydrochloric acid, the iron is separated from impurities with isopentanyl acetate. and then iron is back-extracted with water. Sulfosalicylic acid is addcd to colour iron. Then the coloared complex becomes to a new complex with higher degree of complexation by addition of ammonia. whieh is stable and has higher absorption coefficient. The absorptivity is determined. The preetition of this method is better than 2%, when the amount of iron to be determinted is in range of 0 20 μg.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1992年第5期81-85,共5页
Atomic Energy Science and Technology
关键词
高放废液
萃取
色谱法
钷147
Extraction spectrophotometric method. Iron. Sulfosalicylic acid. Isopentanyl acerate.
