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Accelerated acquisition in pure-shift spectra based on prior knowledge from 1H NMR

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  • Alexandra Shchukina
  • Magdalena Kaźmierczak
  • Paweł Kasprzak
  • Matthew Davy
  • Geoffrey Akien
  • Craig Butts
  • Krzysztof Kazimierczuk
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<mark>Journal publication date</mark>18/07/2019
<mark>Journal</mark>Chemical Communications
Issue number64
Volume55
Number of pages4
Pages (from-to)9563-9566
Publication StatusPublished
<mark>Original language</mark>English

Abstract

Pure-shift NMR enhances the spectral resolution, but the optimal resolutions can only be obtained at the cost of the acquisition time. We propose to accelerate the acquisition using optimised ’burst’ non-uniform sampling schemes[I. E. Ndukwe, A. Shchukina, K. Kazimierczuk, C. P. Butts,ChemComm, 2016, 52, 12769] and then reconstructing the undersampled signal mathematically. Here, we focus on the reliability of this reconstruction depending on the sampling scheme and present a workflow for the sampling optimization. It is ready to be implemented in routine measurements and yields a great improvement of the reconstruction in challenging cases.