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本文报道了应用 HDEHP-PVDF(二-2-乙基已基磷酸-聚偏氟乙烯)萃取色层柱和硅胶柱提纯多种市售放射性同位素示踪剂溶液的工作。结果表明~(155)Eu 是稀土示踪剂的常见杂质,国产的~(144)Ce-~(144)Pr 示踪剂含有复杂的放射性核素组成。
This paper reports the purification of several commercially available radioisotope tracer solutions using HDEHP-PVDF (2-ethylhexylphosphonic acid-polyvinylidene fluoride) extraction chromatography column and silica gel column. The results show that ~ (155) Eu is a common impurity of rare earth tracers. The domestic ~ (144) Ce- ~ (144) Pr tracer contains a complex radionuclide composition.