CROSS POLARIZATION TUNED FOR ROTOR OF SOLID NMR

摘要

PURPOSE: To remove or reduce rotary modulation imposed on an orthogonal polarization for rotation of a sample in an NMR spectrometer. CONSTITUTION: Orthogonal polarization for hetero-coupled NMR spectroanalysis for a sample rotating at a rotational speedωR is improved by radiating a pulse in a tuning relationship with a sample spinner while at least one rf exciting channel is in contact with an orthogonally polarized wave to reduce the dependence of an NMR signal on mechanical rotational speedyωR.