Determination of proton affinity distributions for humic substances

Authors :: Nederlof, Maarten
De Wit, Johannes C.M.
Riemsdijk, Willem H. Van
Koopal, Luuk K.
Source :: Environmental Science & Technology. May, 1993, Vol. 27 Issue 5, p846, 11 p.
Publication Year :: 1993
Abstract: Derivatives of the overall adsorption isotherm are subjected to binding heterogeneity analysis to determine the affinity distribution function. Ionic strength due to electrostatic effects determined the apparent affinity distribution. These electrostatic effects were described by a double layer rigid sphere model. The resulting affinity distribution is described by a pair of semi-Gaussian peaks.