Refined high-pressure tube design for improved resolution in high-pressure NMR spectroscopy.

High-pressure NMR spectroscopy has become a valuable analytical tool in many activities, including the energy sector, chemical research, and biophysics. Many pressure-based applications could benefit from low-field NMR. In this context, a novel, simple, and low-cost high-pressure tube design improving the signal-to-noise ratio by more than 80% is presented.