Eu（Sm）－DBM－CPB体系的激光感生时间分辨荧光光谱的研究  

STUDIES ON LASER-INDUCED TIME-RESOLVED FLUORIMETRY OF Eu(Sm)-DBM-CPB SYSTEM

作　　者：胡继明[1] 胡强[1] 陈观铨[1] 李建军[1] 曾云鹗[1] 

机构地区：[1]武汉大学分析测试科学系,武汉武汉大学化学系

出　　处：《光谱学与光谱分析》1994年第4期7-10,14,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金;青年基金

摘　　要：用自装的激光感生时间分辨荧光光谱装置，研究了Ｅｕ、Ｓｉｎ－二苯甲酰甲烷（ＤＢＭ）体系在阳离子表面活性剂溴代十六烷基吡啶（ＣＰＢ）存在下的光谱特性和荧光衰减动力学特性。给出同时测定Ｅｕ和Ｓｉｎ的激光感生时间分辨荧光光谱分析方法，用于高纯氧化物中痕量Ｅｕ和Ｓｉｎ的测定，获得了满意的结果。A time-resolved fluorimeter device is combined with a Nd:YAG laser and a pulse-gated vidicon optical multichannel analyzer'The spectral properties, fluorescent decayproperties and laser-induced time-resolved spectra of europium,samarium-dibenzoylmethane(Eu,Sin-DBM) in the micellar solution of cationic surfactant cetylpyridinium bromide(CPB) are studied. The DBM-CPB system is used to determine the trace europium and samarium.The proposed method shows good sensitivity,selectivity and stability compared with other fluorimetric methods.Results are satisfactory for the simultaneous determination of trace europium and samarium in highly pure rare earth oxides without preseparation.

关 键 词：激光感生 荧光光谱 铕 DBM CPB 

分 类 号：O614.33[理学—无机化学]