Fast high-resolution J-resolved correlation spectroscopy in inhomogeneous fields

The inhomogeneity of magnetic fields always affects the quality of NMR spectra and hampers the spectral assignment. To circumvent this influence, a new NMR acquisition scheme based on spatial encoding technique and intermolecular zero-quantum coherence is proposed to achieve a high-resolution 3D NMR spectrum in a few minutes without the peaks broadening caused by field inhomogeneity. Both homonuclear correlation and J-resolved information can be obtained from this spectrum. The new scheme may be useful for the study of biological tissues.

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