STUDY OF THE INFLUENCE OF FREE DISSOLVED AMINO-ACIDS ON COPPER(II) ADSORPTION/REMOBILIZATION FROM INORGANIC FRACTIONS OF MARINE-SEDIMENTS USING A REVERSED-PHASE LIQUID-CHROMATOGRAPHIC PROCEDURE

被引：9

作者：

BAFFI, F ^{[1
]}

IANNI, MC ^{[1
]}

RAVERA, M ^{[1
]}

MAGI, E ^{[1
]}

机构：

[1] ITIS A GASTALDI,I-16126 GENOA,ITALY

来源：

ANALYTICA CHIMICA ACTA | 1994年 / 294卷 / 02期

关键词：

LIQUID CHROMATOGRAPHY; AMINO ACIDS; COPPER; METAL COMPLEXES; SEDIMENTS;

D O I：

10.1016/0003-2670(94)80187-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A reversed-phase liquid chromatographic procedure for the determination of amino acids and copper(II)-amino acid complexes was improved and applied to studies dealing with adsorption adn remobilization of copper from sediments in the presence of free and complexed amino acids. In particular, the adsorption by inorganic fractions of a marine sediment as investigated by means of batch equilibration experiments. The results indicate that tow adsorption mechanisms, one due to electrostatic interaction and the other one based on hydrophobic characteristics of the considered species, are simultaneously possible. Scanning electron microscopy with electron probe microanalysis was utilized to provide further information.

引用

收藏

页码：127 / 134

页数：8

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