【摘要】 本文研究了Gd³⁺、Tb³⁺与一缩二甘醇酸形成络合物的荧光性能及发光机理,探讨了Gd³⁺、Tb³⁺同时测定的最佳条件和共存离子的影响。Gd³⁺、Tb³⁺的检测限分别为160和3ng/ml。并将该法成功地应用于稀土氧化物中Gd³⁺、Tb³⁺的测定。更多还原

【Abstract】 The fluorescence property and emitting mechanism of the complex of Tb3+、Gd3+ with oxydiethanoic acid are reported. The optimal conditions for determining Tb3+,Gd3+in oxydiethanoic acid system are established. The interference of other rare earth ions is inves-tigated. A new sensitive method for the simultaneous determination of Tb3+,Gd3+ is pro-posed. The determination limit is 0. 16μg/ml (Gd3+) and 3 ng/ml (Tb3+), respectively. Gd2O3 and Tb4O7 in four kinds of rare earth oxides are determined.更多还原