铀钍分析方法某些进展

Some Progress of Determination Techniques of Trace Uranium and Thorium

对近10年来U、Th分析中广泛应用的方法技术(包括:样品分解、分离富集及检测方法等)进行评述。着重介绍时间分辨激光荧光法对提高痕量U的测定水平的突出贡献及萃取色层技术在痕量U、Th分离富集中的重要位置。

Techniques widely used in geological and environmental laboratories are reviewed, including sample decomposition, preseparation/preconcentration and detection methods. Emphasis is placed on the important role of extraction chromatography in the preseparation/preconcentration of trace U and Th, and the outstanding contribution of the time-resolved/laser-induced fluorescence spectrometry to trace U determination.