铕的时间分辨激光荧光光谱分析──Ⅱ样品测定  

STUDY ON TIME-RESOLVED LASER FLUORESCENCE SPECTRA ANALYSIS FOR THE DETERMINATION OF EUROPIUM

作　　者：潘利华[1] 王淑英[1] 董向明[1] 

机构地区：[1]中国科学院长春应用化学研究所

出　　处：《光谱学与光谱分析》1996年第3期18-22,共5页Spectroscopy and Spectral Analysis

摘　　要：本文应用时间分辨激光荧光光谱分析技术，利用Ｅｕ－ＴＴＡ－ＥｔｏＨ液体荧光体系，完成了混合稀土中铕的测定。其结果与已知样品数据对照，与其他分析方法比较，有较好的一致性。回收率为９０．０～１１２．５％。该法操作简便，灵敏度高，可以省去样品前处理的分离过程。结合实际样品的分析进行了一些条件和共存元素影响的实验。A method based on time-resolved laser fluorescence spectra analysis for Europium has been studied and applied to detection of Europium in rare earth mixtures.The linear range and detection limit of the method are 0. 2--10000ng/ml and 0. 001ng/ml,respectively.The relative standard deviation of the samples is 2. 2% (n = 10).The recovery is in the range of 90. 0-112. 5%. As compared with several analytical technigues, such as ICP--AES spectrometry, Chromatography and X--ray spectrometry,the results is satisfactory.

关 键 词：铕 激光荧光 时间分辨光谱 

分 类 号：O614.338[理学—无机化学] O657.39[理学—化学]