论文部分内容阅读
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 stabilization of gelatin on the fluorescence system of europium-yttrium-dibenzoylmethane-diethylamine precipitation suspension and the fluorescence enhancement effect of gadolinium on europium were studied systematically. The fluorescence intensity was improved by about two orders of magnitude. The detection limit of Eu The results show that the system can be used for the determination of trace Eu in Gd_2O_2 with 8.5 × 10 ~ (-13) mol / L (k = 3).