Abstract
A new method for sampling in two-dimensional nuclear magnetic resonance experiments is proposed and tested using one-dimensional spectra as models. The free induction decays are sampled exponentially, using many points where the signal-to-noise ratio ( S/ N) is high and a few where it is low. Using the maximum entropy method to reconstruct spectra, much higher resolution can be obtained than by using conventional sampling (for a given number of data points). The method is shown to work for FIDs having even very poor S/ N. It should prove valuable in the future for 2D NMR experiments where at present valuable high-resolution information is lost as a result of the necessity for truncation of data sets in t 1 in order to optimize sensitivity.
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