We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The fallacy of using solvent extraction for the study of metal/ligand complexation in mixed solvent systems.
- Authors
Lusk, Robert; Rojas, Ashley; Wall, Nathalie A.
- Abstract
Metal complexes can be identified by ion mobility mass spectrometry, often using mixed aqueous solvents, which improve the electrospray ionization process but induce significant changes in thermodynamic values associated with metals and ligands. This work demonstrates that the addition of 10% acetonitrile and 1.0% dimethyl sulfoxide leads to an increased autoprotolysis constant, does not influence the nitrilotriacetic acid pKa values, but decreases europium extraction in a solvent extraction system. This work shows the inability to quantify the stability constant of Eu/NTA complex in mixed solvent using a solvent extraction technique, as polar solvents are dissolved in the dodecane organic phase.
- Subjects
SOLVENT extraction; POLAR solvents; STABILITY constants; DIMETHYL sulfoxide; ION mobility spectroscopy; NITRILOTRIACETIC acid; EXTRACTION techniques
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2020, Vol 323, Issue 1, p625
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-019-06960-5