Heteronuclear dipolar decoupling in solid-state nuclear magnetic resonance under ultra-high magic-angle spinning

► Investigation of the performance of decoupling schemes at MAS frequency of 60 kHz. ► Comparison of the decoupling schemes at both high and low RF amplitudes. ► Implementation of these decoupling schemes on samples of U-13C glycine and U-13C-l-histidine·HCl·H2O.