Sensitivity enhancement in multiple-quantum NMR experiments with CPMG detection

TitleSensitivity enhancement in multiple-quantum NMR experiments with CPMG detection
Publication TypeJournal Article
Year of Publication2002
AuthorsLim K.H, Nguyen T., Mazur T., Wemmer D.E, Pines A
JournalJournal of Magnetic Resonance
Volume157
Issue1
Pagination160-162
Date PublishedJul
ISBN Number1090-7807
Accession NumberWOS:000177742400019
Keywordsdynamics
Abstract

We present a modified multiple-quantum (MQ) experiment, which implements the Carr-Purcell-Meiboom-Gill (CPMG) detection scheme in the static MQ NMR experiment proposed by W. S. Warren et al. (1980, J. Chem. Phys. 73, 2084-2099) and exploited further by O. N. Antzutkin and R. Tycko (1999, J. Chem. Phys. 110, 2749-2752). It is demonstrated that a significant enhancement in the sensitivity can be achieved by acquiring echo trains in the MQ experiments for static powder samples. The modified scheme employing the CPMG detection was superior to the original MQ experiment, in particular for the carbonyl carbon with a very large chemical shift anisotropy. (C) 2002 Elsevier Science (USA).

URL<Go to ISI>://WOS:000177742400019
DOI10.1006/Jmre.2002.2578
Short TitleSensitivity enhancement in multiple-quantum NMR experiments with CPMG detection
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