同步辐射X荧光微探针扫描分析氟碳铈矿物中的稀土元素  

Scanning Analysis of REE in Bastnaesite by Synchrotron Radiation X-Ray Fluorescence Microprobe

作　　者：安庆骧[1] 王锐兵 邓赛文 潘巨祥[1] 吴应荣[1] 吴澄宇 

机构地区：[1]国家地质实验测试中心,中国科学院高能物理研究所,中国地质科学院矿床研究所,北京科技大学化学系

出　　处：《中国稀土学报》1996年第3期280-283,共4页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金

摘　　要：北京正负电子对撞机（ＢＥＰＣ）国家实验室的增频（或扭摆）磁铁（Ｗｉｇｇｌｅｒ）光源（储存环电子能量２．２ＧｅＶ；最大束流强度７５ｍＡ）提供的同步辐射（ＳＲ）白光，激发ＬＲＥＥ　Ｋ－系线，用ＳＲＸＲＦＭ扫描分析氟碳铈矿物中的轻稀土元素（Ｌａ、Ｃｅ、Ｐｒ、Ｎｄ、Ｓｍ、Ｅｕ）的分布。取同一矿区的氟碳铈矿物，粉碎至粒度＜３００目。一部分熔融，沉淀分离，转成稀土氧化物后，用ＸＲＦ法分析稀土分量。另一部分，不加任何粘结物质，压成Φ２６ｍｍ（１５ｇ）圆片作为ＳＲＸＲＦＭ扫描分析的参比样品，从而可计算样品中稀土的含量。The concentration fo REE(La、 Ce、Pr、Nd、Sm)in bastnaesite have been measured by synchrotron radiation X-ray fluorescence microprobe(SRXRFM)scanning analysis using excitation of the REE K lines between 33 and 50 keV.SR white beam from a wiggler source at the Beijing Electron Positron Collider(BEPC)National Laboratory,was used to excite the REE.The bastnaesite from the same mineral area was powdered to particle size <300 mesh,then divided Into two parts,one was dete。Ined by oxalate deposit and transform into oxide to use XRF method,the other was pressed as disk without any binder and used as the reference sample.The weight and the diameter of disk were 15 g and 26 mm respectively.

关 键 词：同步辐射X荧光 稀土元素 氟碳铈矿物 稀土矿床 

分 类 号：P618.92[天文地球—矿床学]