Accurate pH sensing via hyperpolarized $^{129}$Xe NMR
Résumé
In the search for powerful non-invasive methods for pH measurement, NMR usually suffers from biases, especially for heterogeneous samples or tissues. In this Communication, using the signals of hyperpolarized $^{129}$Xe encapsulated in a pair of water-soluble cryptophanes, we show that a differential pH measurement can be achieved, free from most of these biases, by monitoring the difference between their chemical shifts.
Domaines
MatériauxOrigine | Fichiers produits par l'(les) auteur(s) |
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