DETERMINATION OF TRACE LANTHANIDES IN THEIR PURE OXIDES BY LIQUID-CHROMATOGRAPHY EMISSION-SPECTROMETRY

被引：11

作者：

KUBAN, V ^{[1
]}

JANCAROVA, I ^{[1
]}

OTRUBA, V ^{[1
]}

KANICKY, V ^{[1
]}

机构：

[1] CENT INST GEOL, CS-60200 BRNO, CZECHOSLOVAKIA

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 254卷 / 1-2期

关键词：

ATOMIC EMISSION SPECTROMETRY; LIQUID CHROMATOGRAPHY; EUROPIUM; HOLMIUM; LANTHANIDE OXIDES; YTTERBIUM;

D O I：

10.1016/0003-2670(91)90004-O

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Traces of lanthanides can be separated effectively from major lanthanide oxides by liquid chromatography on a column of Separon SGX-C-18 silica gel modified by sorption of ammonium dodecylsulphate, and determined by flame - or inductively coupled plasma-atomic emission spectrometry. Spectral interferences from the major component at concentration ratios up to 10(4)-10(6) can be eliminated by isocratic or stepwise pH-gradient elution with ammonium 2-hydroxyisobutyrate. Methods of determining europium, ytterbium and holmium in yttrium, lanthanum and lutetium oxides are described. The flame method is shown to have some advantages.

引用

页码：21 / 26

页数：6

共 15 条

[1] DYNAMIC CHROMATOGRAPHIC SYSTEMS FOR THE DETERMINATION OF RARE-EARTHS AND THORIUM IN SAMPLES FROM URANIUM ORE REFINING PROCESSES [J].