Separation and continuous determination of the light rare earth elements and thorium in Baotou Iron Ore by a micro-column

被引：10

作者：

Guo, Guo-long ^{[1
]}

Luo, Ming-biao ^{[1
]}

Xu, Jing-jing ^{[1
]}

Wang, Teng-xiang ^{[1
]}

Hua, Rong ^{[1
]}

Sun, Yu-zhen ^{[1
]}

机构：

[1] E China Inst Technol, Dept Appl Chem, Fuzhou 344000, Jiangxi, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2009年 / 281卷 / 03期

关键词：

Rare earth; Thorium; Micro-column; HD-8 cation exchange resin; PLASMA-MASS SPECTROMETRY; ARSENAZO-III; SOLID-PHASE; PRECONCENTRATION; EXTRACTION; URANIUM; SAMPLES; RESIN; RECOVERY; SORPTION;

D O I：

10.1007/s10967-009-0041-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for continuous determination of the light rare earth elements (LREEs) and thorium in Baotou Iron Ore was established. The light rare earths and thorium were adsorbed on a micro-column packed with HD-8 cation exchange resins. The light rare earth elements were eluted with 4 mol L-1 HCl-2 mol L-1 NH4Cl solution and determined with tribromo-arsenzao by a 721-E spectrophotometry at 630 nm; thorium was eluted with 5% potassium oxalate solution and determined with Arsenazo III by a 721-E spectrophotometry at 660 nm. The measured values by the proposed method were in close agreement with the certified values (Baotou main ore standard sample, Baotou ore R-715 standard sample and GSD-2 standard sample). The RSD of the light rare earths and thorium in Baotou Iron Ore were of <1.70% and <1.99%, respectively.

引用

页码：647 / 651

页数：5

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