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本文制备了~(103)Ru标记的Na_2[RuNO(NO_2)_4OH]络合物,研究了它在季铵-二甲苯中的萃取性能。分配系数D可达～10~3,萃合物中含2分子季铵。建立了以季铵盐为萃取剂从裂变产物中分离测定~(106)Ru-~(106)Rh的方法,结果与H_2SO_4-NaBiO_3蒸馏法相符。对HNO_3溶解的热铀溶液中钌的化学状态及行为作了初步探讨。
In this paper, ~ (103) Ru labeled Na_2 [RuNO (NO_2) _4OH] complex was prepared and its extraction performance in quaternary ammonium-xylene was studied. Partition coefficient D up to ~ 10 ~ 3, the extract contains 2 molecules of quaternary ammonium. A method for the separation and determination of ~ (106) Ru ~ 106 Rh with quaternary ammonium salt as extractant was established. The results were consistent with the H_2SO_4-NaBiO_3 distillation method. The chemical state and behavior of ruthenium in the hot uranium solution dissolved in HNO_3 were preliminarily discussed.