QQ客服 官方微博 反馈留言

	Application of Am-241 EDXRF to the determination of rare earth samples of solvent extraction processes
	Yan, CH ; Jia, JT ; Liao, CS ; Li, BG ; Li, WL ; D&apos ; Ascenzo, G
	1998
关键词	Am-241 energy dispersive X-ray fluorescence spectroscopy rare earths
英文摘要	A rapid energy dispersive X-ray fluorescence spectroscopy (EDXRF) analysis system is established to determine rare earth concentrations. The characteristic K-shell series X-rays of rare earths were excited by a 1.1x10(9) Bq Am-241 radioisotope source. The spectra were recorded and analyzed using a multi-channel analyzer, employing a high-purity Ge detector. In this method, the Compton scattering peak, absorption of elements, and specific simplification are considered. Samples of light, middle and heavy rare earths during separation processes in both hydrochloride solution and rare earth loaded organic phases were analyzed off-line. Some comparative results measured by ICP are also given. The results show that the method can be used for a wide range of rare earth concentrations (0.1-300 g l(-1) rare earth oxide). Being rapid, effective, precise and non-destructive, the method can be applied to on-line analysis to determine rare earth concentrations during separation by solvent extraction. (C) 1998 Elsevier Science S.A.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000075617700204&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; SCI(E); EI; CPCI-S(ISTP); 7
语种	英语
DOI标识	10.1016/S0925-8388(98)00491-5
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150606]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Yan, CH,Jia, JT,Liao, CS,et al. Application of Am-241 EDXRF to the determination of rare earth samples of solvent extraction processes. 1998-01-01.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。