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Complexation reactions in aquatic systems : an analytical approach / J. Buffle, translators S.P. Kounaves, A. Kounaves and R.S. Altman
J. Buffle
- Vol. 1990, Iss: 1990, pp 1-99
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The article was published on 1990-01-01 and is currently open access. It has received 812 citations till now.read more
Citations
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WHAM—a chemical equilibrium model and computer code for waters, sediments, and soils incorporating a discrete site/electrostatic model of ion-binding by humic substances
TL;DR: The WHAM (Windermere Humic Aqueous Model) as mentioned in this paper is a simple inorganic speciation code for aqueous solutions that combines Humic Ion-Binding Model V with a simple, inorganic inorganic specciation code.
Journal ArticleDOI
Ion binding to natural organic matter : competition, heterogeneity, stoichiometry and thermodynamic consistency
David G. Kinniburgh,Willem H. van Riemsdijk,Luuk K. Koopal,Michal Borkovec,Marc F. Benedetti,Marcelo Javier Avena +5 more
TL;DR: The NICCA-Donnan model as mentioned in this paper is a semi-empirical model that is similar to the NICA-donnan model except that it introduces an additional degree of scaling that ensures thermodynamic consistency and allows for variable stoichiometry of binding, which implicitly accounts for the large degree of chemical heterogeneity of humic particles.
Journal ArticleDOI
A unifying model of cation binding by humic substances
TL;DR: Model V describes the binding of ions by humic substances in terms of complexation at discrete sites, modified by electrostatic attraction and/or repulsion, and also takes account of nonspecific binding due to counterion accumulation.
Journal ArticleDOI
A Generalized Description of Aquatic Colloidal Interactions: The Three-colloidal Component Approach
TL;DR: In this article, the physicochemical properties of the different groups of colloids are described, and the role of each colloid class is discussed with respect to homoaggregation (aggregation within a given colloid) and hetero-aggregation among different colloid types.
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The effect of humic acid adsorption on pH-dependent surface charging and aggregation of magnetite nanoparticles
Erzsébet Illés,Etelka Tombácz +1 more
TL;DR: The pH-dependent adsorption of humic acid (HA) on magnetite and its effect on the surface charging and the aggregation of oxide particles were investigated and nanoparticles are stabilized in a way of combined steric and electrostatic effects.
References
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Uptake of Neutral Metal Complexes by a Green Alga: Influence of pH and Humic Substances
TL;DR: In this paper, the influence of pH and a natural humic acid on the short-term uptake (<40 min) of a neutral, lipophilic metal complex by a unicellular freshwater alga, Pseudokirchneriella subcapitata was examined.
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Cadmium Binding Properties of the C-Terminal Hexapeptide from Mouse Metallothionein. Study by Linear Sweep Voltammetry and Multivariate Curve Resolution Analysis.
TL;DR: In this article, the complexation of cadmium by the C-terminal hexapeptide of mouse metallothionein I, Lys-Cys-Thr-cys-Cy-Ala (FT), was studied by linear sweep voltammetry (LSV), where experimental data obtained at different Cd-to-FT concentration ratios, in 0.1 mol l −1 phosphate-HEPES medium at pH 8.0, were analyzed by means of several chemometrical techniques based on factor analysis: principal component analysis, evolving factor
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Thermodynamic Protonation Parameters of some Sulfur-Containing Anions in NaClaq and (CH3)4NClaq at t=25 °C
TL;DR: In this paper, the protonation constants of one thiocarboxylate (thioacetate) and four sulfur-containing carboxylates were determined by potentiometric measurements in a wide ionic strength range.
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Complexation of Hg2+, CH3Hg+, Sn2+ and (CH3)2Sn2+ with phosphonic NTA derivatives
TL;DR: In this paper, the NTA complex formation between Hg2+, CH3Hg+, Sn2+ and (CH3)2Sn2+ was studied using potentiometry in NaCl aqueous solution at I = 0.1 mol L−1 and T = 298.15 K. The results obtained have been compared with the literature data on NTA complexes in order to evaluate and model the effect of the number of carboxylic and/or phosphonic groups of the ligands towards their efficacy in the investigated cations.
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Analytical fractionation of labile metals in selected groundwater humic substances by means of chelating ion-exchanger
P. Burba,P. G. Willmer +1 more
TL;DR: In this paper, the reactivity of a trace metal fraction (e.g., Cu, Fe, Mn, Zn) in selected groundwater humic substances (BOC 1 and 3 from the DFG Versuchsfeld Bocholt, FRG) is characterized by its different separation behaviour towards a chelating ion-exchanger (i.e., Hyphan) using a time-controlled sequential batch procedure.