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Issue 42, 2017
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Complications in complexation kinetics for lanthanides with DTPA using dye probe molecules in aqueous solution

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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.

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

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Supplementary files

Article information


Submitted
27 Apr 2017
Accepted
08 May 2017
First published
17 May 2017

This article is Open Access

RSC Adv., 2017,7, 26507-26512
Article type
Paper

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 and L. R. Martin, RSC Adv., 2017, 7, 26507
DOI: 10.1039/C7RA04755J

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