PROPOSAL FOR A METAL SPECIATION STUDY IN SEDIMENTS

被引：118

作者：

CAMPANELLA, L ^{[1
]}

DORAZIO, D ^{[1
]}

PETRONIO, BM ^{[1
]}

PIETRANTONIO, E ^{[1
]}

机构：

[1] UNIV ROMA LA SAPIENZA,DEPT CHEM,I-00185 ROME,ITALY

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 309卷 / 1-3期

关键词：

ATOMIC ABSORPTION SPECTROMETRY; METAL SPECIATION; SEDIMENTS; SULFIDES;

D O I：

10.1016/0003-2670(95)00025-U

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new five-step extraction procedure for metal speciation has been applied to two sediments, one marine and the other lakustrine. This procedure has been developed to distinguish the metal. fraction bound to the organic matter from that bound in the sulphide form. The extractant solutions were: 1 mol l(-1) ammonium acetate; 1 mol l(-1) hydroxylammonium chloride (1:2 in 25% (v/v) acetic acid); 0.1 mol l(-1) hydrochloric acid; 0.5 mol l(-1) sodium hydroxide; and 8 mol l(-1) nitric acid. The metal concentration (copper, manganese, nickel, lead and zinc) in the extracts was determined by flame atomic absorption spectrometry.

引用

页码：387 / 393

页数：7

共 14 条

[11] EVALUATION OF A SEQUENTIAL EXTRACTION PROCEDURE FOR THE DETERMINATION OF EXTRACTABLE TRACE-METAL CONTENTS IN SEDIMENTS [J].