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本文研究发现铽与均苯四甲酸有强烈的荧光反应，并观察到钆（钪）存在下的共发光现象，研究了该反应的荧光特点和影响因素，确定了反应和测定的最佳条件。钆和钪的引入使原有的铽－均苯四甲酸体系的荧光分别增加了２４０和９５倍。在最佳条件下，对应于钆和钪，铽的浓度分别在５．０×１０－８～３．０×１０－５ｍｏｌ／Ｌ和７．０×１０－８～１．０×１０－５ｍｏｌ／Ｌ的范围内与荧光强度成线性关系，检测限分别为２．０×１０－１０和５．０×１０－１０ｍｏｌ／Ｌ采用多点增量标准加入法测定了合成样品和包头稀土样品中的铽。回收试验的回收率为１００．１±０．０１％和９９．１±０．０３％。
In this paper, it was found that terbium reacted strongly with pyromellitic acid and co-luminescence was observed in the presence of gadolinium (scandium). Fluorescence characteristics and influencing factors of the reaction were studied and the optimum reaction conditions were determined. The introduction of gadolinium and scandium increased the fluorescence of the original terbium-pyromellitic acid system by 240- and 95-fold, respectively. Under optimal conditions, the concentrations of terbium corresponding to gadolinium and scandium are 5.0 × 10 -8 to 3.0 × 10 -5 mol / L and 7.0 × 10 -8 to 1.0 × 10 -5 mol, respectively / L and the linear relationship between the fluorescence intensity, the detection limits were 2.0 × 10-10 and 5.0 × 10-10mol / L using incremental standard addition method to measure the synthesis of samples and Baotou rare earth samples Terbium. Recovery rates for recovery tests were 100.1 ± 0.01% and 99.1 ± 0.03%.