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Title

Elimination of signals tilting caused by B0 field inhomogeneity using 2D-lineshape reference deconvolution

Authors
Sinitsyn, Dmitry O.
Cheshkov, Dmitry A.
Published in Journal of Magnetic Resonance. 2017, vol. 281, p. 229-240
Abstract An efficient approach for reference deconvolution of two-dimensional spectra aiming at the correction of static field inhomogeneity was established. In comparison to known techniques, a great improvement was achieved using the cross-section along the diagonal of the reference peak instead of its full 2D line shape. The method is termed pseudo-2D diagonal deconvolution. The approach developed allows suppressing the two-dimensional peaks tilting caused by the magnetic field inhomogeneity, while keeping the signal-to-noise ratio constant. Long-known method of 2D reference deconvolution (true-2D reference deconvolution) was also applied for comparison. The neutral and resolution-enhancing pseudo-2D deconvolutions were successfully applied for the resolution of complex overlapping multiplets and for measuring small scalar coupling constants. The new algorithm for the elimination of shape distortion of two-dimensional peaks showed to be promising in the perspective of an automated analysis of 2D correlation NMR spectra.
Keywords High-resolution NMRField inhomogeneity2D reference deconvolutionMultidimensional spectra
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SHEBERSTOV, Kirill et al. Elimination of signals tilting caused by B0 field inhomogeneity using 2D-lineshape reference deconvolution. In: Journal of Magnetic Resonance, 2017, vol. 281, p. 229-240. https://archive-ouverte.unige.ch/unige:95402

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Deposited on : 2017-07-12

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