Coherent averaging in the frequency domain
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Dependence of the experimentally measured increase in the 1H NMR peak height on MAS rate in powder samples of : (●) glycine, (○) glucose, (+) valine-leucine dipeptide line 1 (CH3), (×) valine-leucine dipeptide line 2, (Δ) adamantane. All experiments were carried out on 600 MHz Varian/Agilent solid-state NMR spectrometer using a 1 mm ultrafast-spinning double-resonance MAS probe. A single-pulse excitation with a recycle delay of 5 s and 4 scans were used.
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