Issue 12, 2009
From the journal:

New Journal of Chemistry

Direct nano ESI time-of-flight mass spectrometric investigations on lanthanide BTP complexes in the extraction-relevant diluent 1-octanol

Michael Steppert,*a   Clemens Walther,a   Andreas Geista  and  Thomas Fanghänelb  

* Corresponding authors

a Institute for Nuclear Waste Disposal, Forschungszentrum Karlsruhe, Postfach 3640, Germany
E-mail: michael.steppert@ine.fzk.de

b Institute for Transuranium Elements, European Commission, Joint Research Center, Germany

Abstract

The present work focuses on investigations of a highly selective ligand for Am(III)/Ln(III) separation: bis-triazinyl-pyridine (BTP). By means of nano-electrospray mass spectrometry, complex formation of BTP with selected elements of the lanthanide series is investigated. We show that the diluent drastically influences complex speciation. Measurements obtained in the extraction-relevant diluent 1-octanol show the occurrence of Ln(BTP)i (i = 1–3) species in different relative abundances, depending on the lanthanide used. Here, the relative abundances of the Ln(BTP)3 complexes correlate with the distribution ratios for extraction to the organic phase of the respective lanthanide.

Graphical abstract: Direct nano ESI time-of-flight mass spectrometric investigations on lanthanide BTP complexes in the extraction-relevant diluent 1-octanol

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Article information

DOI
https://doi.org/10.1039/B9NJ00371A
Article type
Paper
Submitted
28 Jul 2009
Accepted
31 Aug 2009
First published
25 Sep 2009

New J. Chem., 2009,33, 2437-2442

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Direct nano ESI time-of-flight mass spectrometric investigations on lanthanide BTP complexes in the extraction-relevant diluent 1-octanol

M. Steppert, C. Walther, A. Geist and T. Fanghänel, New J. Chem., 2009, 33, 2437 DOI: 10.1039/B9NJ00371A

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