A convenient, high-sensitivity approach to multiple-resonance NMR at nanolitre volumes with inductively-coupled micro-coils

Abstract

We propose using singly-tuned μ-coils and ¹H-detection to obtain high-sensitivity in lieu of miniaturizing cumbersome multi-resonance circuits, with the existing MAS probe circuitry/coil providing RF at other frequencies. We demonstrate two key building blocks in solid-state NMR: cross-polarization and heteronuclear decoupling. As well, a ¹H-detected 2D HMQC is obtained.