A case study on the influence of hydrophilicity on the signal enhancement by dynamic nuclear polarization.
DNP NMR
Dynamics
Low temperature NMR
Octanol
Solid state NMR
Surfactants
Journal
Solid state nuclear magnetic resonance
ISSN: 1527-3326
Titre abrégé: Solid State Nucl Magn Reson
Pays: Netherlands
ID NLM: 9306181
Informations de publication
Date de publication:
12 2022
12 2022
Historique:
received:
29
06
2022
revised:
25
08
2022
accepted:
07
09
2022
pubmed:
19
9
2022
medline:
7
12
2022
entrez:
18
9
2022
Statut:
ppublish
Résumé
In this work, the behavior of four different commercially available polarizing agents is investigated employing the non-ionic model surfactant 1-octanol as analyte. A relative method for the comparison of the proportion of the direct and indirect polarization transfer pathways is established, allowing a direct comparison of the polarization efficacy for different radicals and different parts of the 1-octanol molecule despite differences in radical concentration or sample amount. With this approach, it could be demonstrated that the hydrophilicity is a key factor in the way polarization is transferred from the polarizing agent to the analyte. These findings are confirmed by the determination of buildup times T
Identifiants
pubmed: 36116176
pii: S0926-2040(22)00058-3
doi: 10.1016/j.ssnmr.2022.101829
pii:
doi:
Substances chimiques
1-Octanol
NV1779205D
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
101829Informations de copyright
Copyright © 2022 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.