CONCOMITANT SEPARATION OF STRONTIUM AND SAMARIUM NEODYMIUM FOR ISOTOPIC ANALYSIS IN SILICATE SAMPLES, BASED ON SPECIFIC EXTRACTION CHROMATOGRAPHY

被引：556

作者：

PIN, C

BRIOT, D

BASSIN, C

POITRASSON, F

机构：

[1] Département de Géologie, U.R.A. 10 CNRS, Université Blaise Pascal, 63038 Clermont-Ferrand

来源：

ANALYTICA CHIMICA ACTA | 1994年 / 298卷 / 02期

关键词：

CHROMATOGRAPHY; EXTRACTION; SAMARIUM; STRONTIUM; NEODYMIUM;

D O I：

10.1016/0003-2670(94)00274-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A separation scheme for strontium and light rare earth elements and its application to the isotopic analysis of strontium and neodymium in silicate rocks are presented. This method benefits from the selectivity and high capacity of two newly introduced extraction chromatographic materials, referred to as Sr.Spec and TRU.Spec, respectively. These afford a straightforward separation of Sr and Sm+Nd with high yield, good purity and satisfactory blank levels, on very small (0.25 ml) columns using small volumes of solutions of a single mineral acid, HNO3. The validity of the method is illustrated by the measurement of Sr-87/Sr-86 and Nd-143/Nd-144 ratios in twelve international standard reference materials.

引用

页码：209 / 217

页数：9

共 24 条

[1] THE USE OF ION EXCHANGE COLUMNS IN MINERAL ANALYSIS FOR AGE DETERMINATION [J].