Smart detection of toxic metal ions, Pb2+ and Cd2+, using a 129Xe NMR-based sensor
Nawal Tassali1, Naoko Kotera, Céline Boutin
1CEA Saclay, IRAMIS, NIMBE, UMR CEA/CNRS 3299 , Laboratoire Structure et Dynamique par Résonance Magnétique, 91191 Gif sur Yvette, France.
Analytical Chemistry
|January 18, 2014
Abstract:
An approach for sensitive magnetic resonance detection of metal cations is proposed. Combining the use of hyperpolarized (129)Xe NMR and of a cage-molecule functionalized by a ligand able to chelate different cations, we show that simultaneous detection of lead, zinc, and cadmium ions at nanomolar concentration is possible in short time, thanks to fast MRI sequences based on the HyperCEST scheme.


