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The effect of ionic strength and of the condensation of divalent ions on the mobility of humic substances have been addressed thanks to conductimetry experiments. The analysis of the experimental data were performed by the use of a Mean Spherical Approximation transport theory, which includes both hydrodynamic and electrostatic interaction effects between all the solutes. An input parameter in the...
The size and the charge of humic substances are key parameters to access their transport properties and their potential ability of complexation in the soil. The purpose of this paper is to show that high precision conductimetry coupled to a suitable transport theory give access, at various pH, to the size and charge of reference humic and fulvic acids, reference natural organic matter (NOM) and polyacrylic...
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