Abstract
The complexation kinetics for the polyaminopolycarboxylic ligand DTPA to lanthanides in acidic aqueous solution were investigated using the dye ligand displacement technique and stopped-flow spectroscopy. Significant rate differences were obtained for different dye probes used, indicating that the kinetics of the dissociation of the dye molecule significantly impacts the overall measured kinetics when using this common methodology. The conditions of the solution also influenced the dye-lanthanide-DTPA interactions, which reconciled previously disparate data in the literature.
Original language | English |
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Pages (from-to) | 26507-26512 |
Number of pages | 6 |
Journal | RSC Advances |
Volume | 7 |
Issue number | 42 |
DOIs | |
State | Published - 2017 |
Funding
This research was funded by the U.S. DOE Office of Nuclear Energy as part of the FCR &D Thermodynamics and Kinetics program, under DOE Idaho Operations Office contract DEAC07-05ID14517. Partial funding for this work was also provided by Nuclear Energy Universities Program, under DOENEUP program DE-NE0008410.