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EXtended ACquisition Time (EXACT) NMR—A Case for ′Burst′ Non‐Uniform Sampling
Author(s) -
Ndukwe Ikenna E.,
Shchukina Alexandra,
Kazimierczuk Krzysztof,
Cobas Carlos,
Butts Craig P.
Publication year - 2016
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201600541
Subject(s) - homonuclear molecule , decoupling (probability) , sampling (signal processing) , broadband , dimension (graph theory) , data acquisition , nuclear magnetic resonance spectroscopy , computer science , coupling (piping) , spectroscopy , computational physics , algorithm , physics , statistical physics , nuclear magnetic resonance , materials science , mathematics , telecommunications , molecule , quantum mechanics , detector , engineering , control engineering , pure mathematics , metallurgy , operating system
A strong case exists for the introduction of burst non‐uniform sampling (NUS) in the direct dimension of NMR spectroscopy experiments. The resulting gaps in the NMR free induction decay can reduce the power demands of long experiments (by switching off broadband decoupling for example) and/or be used to introduce additional pulses (to refocus homonuclear coupling, for example). The final EXtended ACquisition Time (EXACT) spectra are accessed by algorithmic reconstruction of the missing data points and can provide higher resolution in the direct dimension than is achievable with existing non‐NUS methods.