激光诱导荧光在痕量铀、铕和钐测定中的应用。

Application of laser-induced fluorescence for determination of trace uranium, europium and samarium.

作者信息

Hong K B, Jung K W, Jung K H

机构信息

Department of Chemistry, Korea Advanced Institute of Science and Technology, P.O. Box 150, Chongyang, Seoul 130-650, Republic of Korea.

出版信息

Talanta. 1989 Nov;36(11):1095-9. doi: 10.1016/0039-9140(89)80007-4.

DOI:10.1016/0039-9140(89)80007-4

PMID:18964871

Abstract

Trace amounts of uranium, europium and samarium can be determined by means of laser-induced fluorescence. The fluorescence emission and excitation spectra were observed by adding fluorescence enhancing reagents. The fluorescence lifetimes of these elements were also measured. The intensities of emission were found to be linear with respect to the concentration of the element over a wide range. The detection limits for U(VI), Eu(III), and Sm(III) were established as 0.05, 0.1, and 10 ng/ml, respectively. The study suggested that this is a suitable technique for the trace determination of uranium and rare earth elements.

摘要

痕量铀、铕和钐可用激光诱导荧光法测定。通过添加荧光增强试剂观察荧光发射光谱和激发光谱。还测量了这些元素的荧光寿命。发现在很宽的浓度范围内发射强度与元素浓度呈线性关系。U(VI)、Eu(III)和Sm(III)的检测限分别确定为0.05、0.1和10 ng/ml。该研究表明，这是一种适用于痕量测定铀和稀土元素的技术。