Scavenging Free Radicals To Preserve Enhancement and Extend Relaxation Times in NMR using Dynamic Nuclear Polarization

Scavenging Free Radicals To Preserve Enhancement and Extend Relaxation Times in NMR using Dynamic Nuclear Polarization

Vitamin C for longer lifetimes: N‐oxide radicals that are widely used for dynamic nuclear polarization can be reduced by scavengers such as sodium ascorbate (vitamin C) during the dissolution process, thus diminishing losses of polarization during the transfer and extending transverse and longitudin...

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Veröffentlicht in:Angewandte Chemie (International ed.) 2010-08, Vol.49 (35), p.6182-6185
Hauptverfasser: Miéville, Pascal, Ahuja, Puneet, Sarkar, Riddhiman, Jannin, Sami, Vasos, Paul R, Gerber-Lemaire, Sandrine, Mishkovsky, Mor, Comment, Arnaud, Gruetter, Rolf, Ouari, Olivier, Tordo, Paul, Bodenhausen, Geoffrey
Format: Artikel
Sprache:eng
Schlagworte:
Ascorbic Acid - chemistry
Chemical Sciences
Cyclic N-Oxides - chemistry
dynamic nuclear polarization
Free Radical Scavengers - chemistry
hyperpolarization
Magnetic Resonance Spectroscopy
NMR spectroscopy
Organic chemistry
Oxidation-Reduction
radicals
scavenging
Spin Labels
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Zusammenfassung:Vitamin C for longer lifetimes: N‐oxide radicals that are widely used for dynamic nuclear polarization can be reduced by scavengers such as sodium ascorbate (vitamin C) during the dissolution process, thus diminishing losses of polarization during the transfer and extending transverse and longitudinal relaxation times in NMR spectroscopy (see picture).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201000934