Complications in complexation kinetics for lanthanides with DTPA using dye probe molecules in aqueous solution

K. Larsson, T. D. Cullen, S. P. Mezyk, R. G. McDowell, L. R. Martin

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

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 languageEnglish
Pages (from-to)26507-26512
Number of pages6
JournalRSC Advances
Volume7
Issue number42
DOIs
StatePublished - 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.

Fingerprint

Dive into the research topics of 'Complications in complexation kinetics for lanthanides with DTPA using dye probe molecules in aqueous solution'. Together they form a unique fingerprint.

Cite this