MULTIELEMENT SPECIATION OF TRACE-METALS IN FRESH-WATER-ADAPTED TO PLASMA SOURCE-MASS SPECTROMETRY

被引：31

作者：

HARALDSSON, C

LYVEN, B

POLLAK, M

SKOOG, A

机构：

[1] Department of Analytical and Marine Chemistry, University of Göteborg, Chalmers University of Technology

来源：

ANALYTICA CHIMICA ACTA | 1993年 / 284卷 / 02期

关键词：

MASS SPECTROMETRY; METAL SPECIATION; TRACE METALS; WATERS;

D O I：

10.1016/0003-2670(93)85317-D

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for speciation of trace metals at natural concentration levels has been developed. The speciation is carried out in a cleanroom laboratory and the determination is performed with an ICP-MS. The method is based on fractionation of metal species on three adsorbents, Chelex-100, Sep-Pak C-18 and Fractogel DEAE. The method distinguishes between labile complexes, non-polar organic adsorbable matter and ion exchangeable substances. The filtered water samples are pumped through columns with the adsorbents. Following a prefraction, samples for determination of metal concentrations are taken. The adsorbents are not eluted. After extensive cleaning, the used adsorbents have blank values that are low enough for trace metal analysis in fresh water. Concentration and speciation data for Al, Cd, Co, Cu, Fe, Pb, Mn, Mo, Ni and Zn are obtained.

引用

页码：327 / 336

页数：10

共 22 条

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