Effect of pH on the complexation parameters for organic matter dissolved in river water

被引:7
作者
Antelo, JM [1 ]
Arce, F [1 ]
Penedo, FJ [1 ]
机构
[1] Univ Santiago de Compostela, Fac Quim, Dept Quim Fis, E-15706 Santiago De Compostela, Spain
来源
CHEMICAL SPECIATION AND BIOAVAILABILITY | 2000年 / 12卷 / 01期
关键词
river water; complexing parameters; pH effect;
D O I
10.3184/095422900782775580
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The differential pulse anodic stripping voltammetry (DPASV) technique was used to study the complexation equilibrium of Cu(II) with organic matter dissolved in river water samples collected over a one-year period. The effect of pH on the conditional stability constant was found to fit a simple equation derived from a model that takes account of the competitive effect of the proton. No temporal changes in the behaviour of dissolved organic matter were observed.
引用
收藏
页码:9 / 15
页数:7
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