MODIFIED CARBON PASTE ELECTRODES FOR THE STUDY OF METAL HUMIC SUBSTANCES COMPLEXATION

被引：27
作者：
NAVRATILOVA, Z
KULA, P
机构：
[1] Institute of Industrial Landscape Ecology Ostrava, Czechoslovak Academy of Sciences, 710 00 Ostrava 2
来源：
ANALYTICA CHIMICA ACTA | 1993年 / 273卷 / 1-2期
关键词：
VOLTAMMETRY; CARBON PASTE ELECTRODES; COPPER; HUMIC SUBSTANCES; MERCURY; SILVER; ZINC;
D O I：
10.1016/0003-2670(93)80170-P
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The complexation of copper, zinc, mercury and silver with humic substances was studied by means of carbon paste electrodes modified with these ligands. Six different humic substances were studied. The different behaviour of the copper complexes with solid humic ligands in the electrode were found to correlate with copper complexes formed with ligands in the solution. The complexation reactions of metals are associated with dissolution and dissociation of solid humic substances. The carbon paste electrodes modified with humic substances would be suitable for the study of some soil processes.
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页码：305 / 311
页数：7
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