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

Authors
Antelo, JM Arce, F Penedo, FJ
Citation
Jm. Antelo et al., Effect of pH on the complexation parameters for organic matter dissolved in river water, CHEM SPEC B, 12(1), 2000, pp. 9-15
Citations number
18
Categorie Soggetti
Environment/Ecology
Journal title
CHEMICAL SPECIATION AND BIOAVAILABILITY
ISSN journal
09542299 → ACNP
Volume
12
Issue
1
Year of publication
2000
Pages
9 - 15
Database
ISI
SICI code
0954-2299(2000)12:1<9:EOPOTC>2.0.ZU;2-8
Abstract
The differential pulse anodic stripping voltammetry (DPASV) technique was u sed to study the complexation equilibrium of Cu(II) with organic matter dis solved 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 equat ion derived from a model that takes account of the competitive effect of th e proton. No temporal changes in the behaviour of dissolved organic matter were observed.