DETERMINATION OF TRACE-METALS IN CONCENTRATED BRINES USING INDUCTIVELY-COUPLED PLASMA-MASS SPECTROMETRY ONLINE PRECONCENTRATION AND MATRIX ELIMINATION WITH FLOW-INJECTION

被引：47

作者：

EBDON, L

FISHER, A

HANDLEY, H

JONES, P

机构：

[1] Plymouth Analytical Chemistry Research Unit, Department of Environmental Sciences, University of Plymouth, Plymouth, PL4 8AA, Drake Circus

[2] Laboratory of the Government Chemist, Teddington, Middlesex, TW11 0LY, Queens Road

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 1993年 / 8卷 / 07期

关键词：

BRINE ANALYSIS; MATRIX ELIMINATION; INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY; FLOW INJECTION; ONLINE PRECONCENTRATION;

D O I：

10.1039/ja9930800979

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An on-line preconcentration matrix elimination procedure was developed for the analysis of concentrated brines by inductively coupled plasma mass spectrometry. Elements of interest (alkaline earths and first row transition metals) were concentrated quantitatively and isolated from the sodium chloride matrix using a chelating ion-exchange column. Two columns were evaluated, an in-house dynamically coated chelating exchange resin and a commercially available chelating resin. The method was applied to the determination of the metals in concentrated brines and the analysis of the Open Ocean Sea-water Reference Material NASS-3 (National Research Council of Canada). Linear calibrations were obtained in the concentration range of interest (<200 mug l-1) and excellent agreement with the certified reference values was obtained.

引用

页码：979 / 981

页数：3

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