Determination of rare earth elements in soils and sediments by inductively coupled plasma atomic emission spectrometry after cation-exchange separation

被引：53

作者：

Djingova, R ^{[1
]}

Ivanova, J ^{[1
]}

机构：

[1] Univ Sofia, Fac Chem, Dept Analyt Chem, BU-1126 Sofia, Bulgaria

来源：

TALANTA | 2002年 / 57卷 / 05期

关键词：

rare earth elements; soils; sediments; ICP-AES;

D O I：

10.1016/S0039-9140(02)00126-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The influence of matrix elements such as Ba, Ca, Fe, K, Na and Ti, on the inductively coupled plasma atomic emission spectrometry determination of the rare earth elements in soils and sediments is investigated and analytical lines with minimal interferences are chosen. The analysis of certified reference materials by two calibration methods (pure rare earth solutions and IAEA-Soil 5) and after cation-exchange proved that calibrations with IAEA-Soil 5 increase the number of accurately determined rare earth elements (REE), permitting the instrumental determination of Ce, Eu, La, Nd, Tb, Yb and Y in soils and some sediments. The cation-exchange procedure permits the determination of 12 REE with very good accuracy (below 10%) and detection limits varying between 0.05 (Eu, Tb, Yb) and 0.5 (Er) mg kg(-1). (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：821 / 829

页数：9

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