Simultaneous determination of the speciation of selenium and tellurium in geological matrices by use of an iron(III)-modified chelating resin and cathodic stripping voltammetry

被引：44

作者：

Ferri, T ^{[1
]}

Rossi, S ^{[1
]}

Sangiorgio, P ^{[1
]}

机构：

[1] Univ Rome La Sapienza, Dipartimento Chim, I-00185 Rome, Italy

来源：

ANALYTICA CHIMICA ACTA | 1998年 / 361卷 / 1-2期

关键词：

D O I：

10.1016/S0003-2670(98)00021-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The paper describes the combined use of a preconcentration method using a chelating resin (iron(III)-loaded) and cathodic stripping voltammetry to determine simultaneously the speciation of inorganic Se and Te in solid environmental matrices. The method, whose reliability has been checked on certified reference materials (NIST), is suitable for studying natural levels (down to mu g Kg(-1)), easy to apply and also characterised by good precision. The speciation method has been applied to six geological reference samples (GXR series) kindly supplied by the U.S. Geochemical Survey. (C) 1998 Elsevier Science B.V.

引用

页码：113 / 123

页数：11

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