Sensitivity enhancement in static solid-state nmr experiments via singleand multiple-quantum dipolar coherences

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Abstract

We present a new method for enhancing the sensitivity in static solid-state NMR experiments for a gain in signal-to-noise ratio of up to 40%. This sensitivity enhancement is different from the corresponding solution NMR sensitivity enhancement schemes and is achieved by combining single- and multiple-quantum dipolar coherences. While this new approach is demonstrated for the polarization inversion spin exchange at magic angle (PISEMA) experiment, it can be generalized to the other separated local field experiments for solid-state NMR spectroscopy. This method will have a direct impact on solid-state NMR spectroscopy of liquid crystals as well as of membrane proteins aligned in lipid membranes.

Original languageEnglish (US)
Pages (from-to)5754-5756
Number of pages3
JournalJournal of the American Chemical Society
Volume131
Issue number16
DOIs
StatePublished - Apr 29 2009

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