| Main Title |
Characterization of Metal Binding Sites in Fulvic Acids by Lanthanide Ion Probe Spectroscopy. |
| Author |
Dobbs, J. C. ;
Susetyo, W. ;
Knight, F. E. ;
Castles, M. A. ;
Azarraga, L. V. ;
|
| CORP Author |
Georgia Univ., Athens. Dept. of Chemistry.;Environmental Research Lab., Athens, GA. Office of Research and Development. |
| Publisher |
c1989 |
| Year Published |
1989 |
| Report Number |
EPA-809989; EPA/600/J-89/027; |
| Stock Number |
PB90-100819 |
| Additional Subjects |
Metals ;
Humic acids ;
Rare earth elements ;
Probes ;
Graphs(Charts) ;
Luminescence ;
Least squares method ;
Reprints ;
Fulvic acids ;
Binding sites ;
Ion spectroscopy
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-100819 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
Naturally occurring humic substances are known to be potentially strong binders of metals in the environment. A sensitive spectroscopic technique, based on the unique luminescent properties of the tripositive lanthanide metal ions, has been developed to selectively probe metal binding sites in humic substances. A continuous multiple ligand model is proposed to describe complexation of metals with humic materials in terms of mean binding strengths, distributions, and concentrations. Experimental results as well as a simulation study that uses the model also are presented. (Copyright (c) 1989 American Chemical Society.) |
