Nuclear magnetic resonance autocorrelation spectroscopy

Abstract

The principles of autocorrelation n.m.r. (a.n.m.r.) spectroscopy are given. The calculation of an a.n.m.r. spectrum from an experimental digitised free induction decay can be performed using standard software. The main advantage of a.n.m.r. over conventional spectra is the complete independence of variation of the resonance frequency or the magnetic field. The autocorrelation procedure allows the computer-accumulation of n.m.r. data measured in non-stabilised (non-locked) magnetic fields. Some examples of measured and simulated data demonstrate the usefulness of this technique.