On-line method for inductively coupled plasma mass spectrometric determination of rare earth elements in highly saline brines

被引：58

作者：

Halicz, L

Gavrieli, I

Dorfman, E

机构：

[1] Geological Survey of Israel, 95501 Jerusalem

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 1996年 / 11卷 / 09期

关键词：

rare earth elements; inductively coupled plasma mass spectrometry; sea-water; highly saline brines;

D O I：

10.1039/ja9961100811

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A rapid and reliable on-line preconcentration method for the determination of REE in sea-water and highly saline brines by ICP-MS was developed. The method is based on REE separation from the saline water by adsorption on a micro-column of silica-immobilized 8-hydroxyquinoline. After adsorption on the micro-column at pH 9, the REE are eluted with a small volume of mixed acids and introduced into the ICP-MS instrument. The system operates at low pressure. Total time of preconcentration and analysis is less than 10 min. Detection limits in highly saline waters range from 0.06 ng l(-1) for Tb and Ho to 0.6 ng l(-1) for Ce and Nd. Since there is no REE sea-water reference, the analytical results obtained by this method were compared with those quoted in the literature.

引用

页码：811 / 814

页数：4

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