摘要
测定了苯并咪唑镧配合物水溶液的紫外光谱、三维荧光激发和发射光谱,讨论了该配合物的升频转换荧光,并发现在4×10-5～5×10-4mol/L范围内290nm处,荧光强度与浓度呈负相关;而在365nm处,浓度1×10-4mol/L时,荧光强度是一极大值。
The measurement has been done for coordination compound of La with Benzimidazole using ultraviolet spectrum and threedimension fluorescence spectrum.The upconversion fluorescence of the heading coordination compound was discussed.The range of its between 5×10-4～4×10-5 mol/L,it was founded that the fluorescence intensity in λ=290 nm of the compound is opposite proportional to its concentration. However,the intensity of fluorescence in λ=365 nm has another maximun in 1×10-4 mol/L.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
北大核心
2002年第5期480-482,共3页
Journal of Northwest University（Natural Science Edition）
基金
陕西省科技攻关项目(2001K08-G5)
陕西省自然科学基金(97H04)
陕西省教育厅重点科研项目(99JK10)
陕西省教育厅专项基金(00JK120)资助项目
关键词
镧配合物
三维荧光激发和发射光谱
升频转换荧光
complex of La
threedimensional excitation and emission fluorescence spectrum
upconversion fluorescence
