DETERMINATION OF INTERACTIONS OF NICKEL WITH DISSOLVED ORGANIC MATERIAL IN SEAWATER USING CATHODIC STRIPPING VOLTAMMETRY

被引：112
作者：
VAN DEN BERG, CMG
NIMMO, M
机构：
[1] Univ of Liverpool, Liverpool, Engl, Univ of Liverpool, Liverpool, Engl
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 1987年 / 60卷
关键词：
ELECTROLYTIC ANALYSIS;
D O I：
10.1016/0048-9697(87)90415-3
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Procedures and theory are presented to determine complexing capacities for nickel in seawater using cathodic stripping voltammetry of complexes with dimethylglyoxime (DMG). Values for beta (Ni(DMG)//2 are determined for seawater of several salinities by ligand competition with EDTA. Preliminary measurements on samples from various locations reveal the presence of low concentrations (2-4 nm) of strong complexing ligands with values for the conditional stability constant, log K prime (NiL), between 17. 3 and 18. 7.
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页码：185 / 195
页数：11
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