摘要
研究了四种新型氨羧螯合剂在水溶液中自身的荧光及对Ｅｕ３＋、Ｔｂ３＋离子的敏化发光性能．考察了浓度、ｐＨ值对荧光强度的影响．
luorescent properties were investigated by mixing the four chelants with Eu3+ and Tb3+ ions in aqueous solution respectively. The fluorescent intensity varies with chelants, pH value and concentration of chelantes. The chelants can enhance Tb3+ ion luminescence in aqueous solution, especially DTPA-pAS and EDTA-pAS. The sequence is EDTA-pAS>DTPA-pAS>DTPA-pAB>EDTA-pAB. But the chelants can not enhance Eu3+ ion luminescence in aqueous solution. As pH value located in the rang 6. 0～12. 0, the fluorescent intensity shows only small fluctuation. The fluorescence of Tb3+ ion can be detected even at the concentration of 1. 0×10-7 mol/L.
出处
《发光学报》
EI
CAS
CSCD
北大核心
1994年第4期354-359,共6页
Chinese Journal of Luminescence
基金
攀登计划子课题
