β Scribed by T.M. Barbara; L. Baltusis
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## Recently, a new phase cycling scheme was introduced by this The sample used for the experiments is sodium ammonium laboratory for use in biological solid-state NMR experiments inphosphate. Solid-state NMR was carried out on a Chemagnetvolving multiple p-pulses with characteristics that suggeste
## Abstract __When applying multiple refocusing pulses to characterize the crossβcorrelated relaxation of heteronuclear multiple quantum coherence 2__N~x~H~x~ __in biomolecules, the unavoidable effects of pulse imperfections are compensated by the scalar couplings between nitrogen atoms and protons
An extension of NMR pulsed-field gradient experiments toward the generation, acquisition, and analysis of multiple echoes is presented. In contrast to currently used measurements where a single or double encoding of displacements by gradient pulses is followed by an acquisition of the echo signal at
Technical details are given for the successful operation of CRAMPS techniques to obtain high-resolution proton NMR spectra of solids. Matters addressed include probe construction, tuning procedures, optimization of pulses, spectral calibration and referencing. In practice, the MREV-8 sequence is pre