^（241）Am激发的EDXRF在稀土溶剂萃取分离检测中的应用

Application of ￣(241)Am EDXRF in Detecting and Controlling of Rare Earth Separation Process by Solvent Extraction

本文研究了一种２４１Ａｍ作激发源、高纯平面锗型探测器的ＥＤＸＲＦ快速分析方法。采用这种方法离线分析了ＳｍＥｕＧｄ／Ｔｂ／Ｄｙ槽体中的稀土盐酸盐水溶液样品并同ＩＣＰ测试结果作了比较。结果表明该法可在较宽的稀土浓度范围内使用。由于这是一种快速、准确、有效的无损分析方法，可用于稀土溶剂萃取分离过程的在线分析。

The article investigated a fast EDXRF analysis method by radioisotopeexcited (241Am)employing a high-purity germanium detector in rare earth separation process by solvent extraction. Applying the method, hydrochloride aqueous samples of SmEuGd/Tb/Dy separation processes were off-line analyzed. Comparative results measured by ICP were also given out. The results show that the method can be used for a wide rare earth concentration range with low error.Being fast, effective, precise and non-destructive, it can be used for on-line analysis to detect and control rare earth separation process by solvent extraction.