Record Display for the EPA National Library Catalog


Main Title Development of a Statistical Model for Metal-Humic Interactions.
Author Susetyo, W. ; Dobbs, J. C. ; Carreira, L. A. ; Azarraga, L. V. ; Grimm., D. M. ;
CORP Author Georgia Univ., Athens. Dept. of Chemistry.;Environmental Research Lab., Athens, GA.;National Research Council, Washington, DC.
Publisher c1990
Year Published 1990
Report Number EPA/600/J-90/246;
Stock Number PB91-116921
Additional Subjects Humic acids ; Chemical bonds ; Metals ; Protons ; Water pollution ; Mathematical models ; Cations ; Reprints ; Ion probes ; Gauss function ; Fluorescence spectroscopy ; Titration
Library Call Number Additional Info Location Last
NTIS  PB91-116921 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
A statistical model for describing the distribution of binding sites in humic substances was developed. The model was applied to study the spectral titration plot generated by the lanthanide ion probe spectroscopy (LIPS) technique. This titration plot is used as a basis for studying the interactions between metal ions and humic binding sites. Humic samples were titrated with Eu(3+), which acts as the fluorescent probe ion. The competition effects between a proton, a metal ion other than the probe ion, and the probe ion itself in binding with the humic binding sites, as well as the electrostatic effects, are successfully predicted and described by the model (Copyright (c) 1990 American Chemical Society.)