Complexing of metal ions by humic substances
Conference
·
OSTI ID:214874
- Univ. of Manchester (United Kingdom); and others
The interaction of metal ions with humic substances is being studied using two different techniques. UV-scanning ultracentrifugation is being used to determine molecular weights and to investigate changes in aggregation brought about by metal ion complexation. The relationship between cation charge and conformation of the humic ligands is also being investigated. The complexation of actinide elements (U, Np, Pu, Am) by humic substances from soils contaminated by both natural processes and by low-level effluent releases is also being studied. Gel permeation chromatography has been used to show both that different fractions of humic substances vary greatly in their effectiveness as ligands and that different actinide elements associate with different fractions. These studies have also shown that uranium desorption is kinetically controlled by humic substances.
- OSTI ID:
- 214874
- Report Number(s):
- CONF-950801--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Complexation of transuranic ions by humic substances: Application of laboratory results to the natural system
Investigations of the uptake of transuranic radionuclides by humic and fulvic acids chemically immobilized on silica gel and their competitive release by complexing agents
Ion chromatographic determination of nitrate and sulfate in natural waters containing humic substances
Conference
·
Tue Dec 30 23:00:00 EST 1997
·
OSTI ID:572165
Investigations of the uptake of transuranic radionuclides by humic and fulvic acids chemically immobilized on silica gel and their competitive release by complexing agents
Journal Article
·
Wed Jul 01 00:00:00 EDT 1998
· Waste Management
·
OSTI ID:619431
Ion chromatographic determination of nitrate and sulfate in natural waters containing humic substances
Journal Article
·
Mon Oct 01 00:00:00 EDT 1984
· Anal. Chem.; (United States)
·
OSTI ID:5371278