Variations in Transition Metal Ion Speciation Due to Differences in Dissolved Organic Matter
Location
CSU 253/4/5
Start Date
23-4-2007 1:00 PM
End Date
23-4-2007 3:00 PM
Student's Major
Chemistry and Geology
Student's College
Science, Engineering and Technology
Mentor's Name
John Thoemke
Mentor's Department
Chemistry and Geology
Mentor's College
Science, Engineering and Technology
Description
We explored the interaction of dissolved organic matter (DOM) and transition metal ions. We use the competing ligand exchange method with Chelex resin to determine the binding kinetics of DOM from several natural waters and several transition metals. Then, we used the kinetic data to attempt to correlate variations in the DOM binding with the characteristics of the DOM excitation-emission fluorescence spectra. The competing ligand exchange results suggested that dissolved organic matter with a strong terrestrial component releases the metal ion at a faster rate.
Variations in Transition Metal Ion Speciation Due to Differences in Dissolved Organic Matter
CSU 253/4/5
We explored the interaction of dissolved organic matter (DOM) and transition metal ions. We use the competing ligand exchange method with Chelex resin to determine the binding kinetics of DOM from several natural waters and several transition metals. Then, we used the kinetic data to attempt to correlate variations in the DOM binding with the characteristics of the DOM excitation-emission fluorescence spectra. The competing ligand exchange results suggested that dissolved organic matter with a strong terrestrial component releases the metal ion at a faster rate.
Recommended Citation
Wienhold, Richard. "Variations in Transition Metal Ion Speciation Due to Differences in Dissolved Organic Matter." Undergraduate Research Symposium, Mankato, MN, April 23, 2007.
https://cornerstone.lib.mnsu.edu/urs/2007/poster-session-B/6
