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Scientific article
English

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

Published inJournal of magnetic resonance, vol. 281, p. 229-240
Publication date2017
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 NMR
  • Field inhomogeneity
  • 2D reference deconvolution
  • Multidimensional spectra
Citation (ISO format)
SHEBERSTOV, Kirill et al. Elimination of signals tilting caused by B<sub>0</sub> field inhomogeneity using 2D-lineshape reference deconvolution. In: Journal of magnetic resonance, 2017, vol. 281, p. 229–240. doi: 10.1016/j.jmr.2017.06.005
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ISSN of the journal1090-7807
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Creation07/11/2017 4:19:00 PM
First validation07/11/2017 4:19:00 PM
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