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

Pure-shift NMR enhances spectral resolution, but the optimal resolution can only be obtained at the cost of acquisition time. We propose to accelerate pure-shift acquisition using optimised ‘burst’ non-uniform sampling schemes [I. E. Ndukwe, A. Shchukina, K. Kazimierczuk and C. P. Butts, Chem. Commu...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019-08, Vol.55 (64), p.9563-9566
Main Authors: Shchukina, Alexandra, Kaźmierczak, Magdalena, Kasprzak, Paweł, Davy, Matthew, Akien, Geoffrey R, Butts, Craig P, Kazimierczuk, Krzysztof
Format: Article
Language:English
Subjects:
NMR
Nuclear magnetic resonance
Optimization
Reconstruction
Sampling
Spectral resolution
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Summary:Pure-shift NMR enhances spectral resolution, but the optimal resolution can only be obtained at the cost of acquisition time. We propose to accelerate pure-shift acquisition using optimised ‘burst’ non-uniform sampling schemes [I. E. Ndukwe, A. Shchukina, K. Kazimierczuk and C. P. Butts, Chem. Commun., 2016, 52, 12769] and then reconstruct 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 in reconstruction of challenging cases.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc05222d