本文采用对氯偶氮氯膦(CPA—PCL)为螯合剂,VS-Ⅱ型强碱性阴离子交换纤维为载体,以先吸着后螯合方式对稀土元素与基体元素进行分离与富集,并经酸溶制备成溶液,采用溶液进样法直接由X射线荧光光谱法(XRFS)测定15个稀土元素。该法具有简便、整合剂用量少、基体效应小的特点,精密度、准确度及检测限均能满足地质样品分析要求,取得满意结果。 In this paper, the rare earth elements and matrix elements were separated and enriched by chelating with CPA-PCL chelating agent and VS-Ⅱ strongly basic anion exchange fiber as carrier, Prepared by acid solution into a solution, using solution injection method directly by X-ray fluorescence spectrometry (XRFS) determination of 15 rare earth elements. The method has the advantages of simplicity, less dosage of the integrator and less matrix effect. The precision, the accuracy and the detection limit can meet the requirements of geological sample analysis and achieve satisfactory results.