稀土元素悬浮液荧光体系的研究——铕-钆-二本甲酰甲烷-二乙胺体系

Suspensiom System of Fluorescence Coordination Compound of Europium(Ⅲ)-Dibenzoylmethane-Diethylamine With Gadolinium

系统研究了明胶对铕-钇-二苯甲酰甲烷-二乙胺沉淀悬浮液荧光体系的稳定化作用和钆对铕的荧光增强效应,使荧光强度提高约2个数量级,Eu的检出限达8.5×10^(-13)mol/L(k=3),该体系可用于Gd_2O_2中痕量Eu的测定,结果满意.

The fluorescence enhancement phenomenon by Gd (III) and stabilized effect by gelatin in the suspension system of fluorescence coordination compound of Eu(III)-dibenzoyl-methane-diethylamine were studied systematically. The fluorescence intensity of the system can increase by about 2 orders of magnitude, the detection limit of Eu is 8. 5 X 10-13mol/L (k = 3). The system can be applied to the determination of trace europium in Gd2O3 with satisfactory results.