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Howe PW. Indirect determination of chemical shift by coupling evolution during adiabatic pulses. J Magn Reson. 2008;192(2):177-82doi: 10.1016/j.jmr.2008.02.013.
Howe, P. W. (2008). Indirect determination of chemical shift by coupling evolution during adiabatic pulses. Journal of magnetic resonance (San Diego, Calif. : 1997), 192(2), 177-82. https://doi.org/10.1016/j.jmr.2008.02.013
Howe, Peter W A. "Indirect determination of chemical shift by coupling evolution during adiabatic pulses." Journal of magnetic resonance (San Diego, Calif. : 1997) vol. 192,2 (2008): 177-82. doi: https://doi.org/10.1016/j.jmr.2008.02.013
Howe PW. Indirect determination of chemical shift by coupling evolution during adiabatic pulses. J Magn Reson. 2008 Jun;192(2):177-82. doi: 10.1016/j.jmr.2008.02.013. Epub 2008 Feb 16. PMID: 18329920.
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J Magn Reson. 2008 Jun;192(2):177-82. doi: 10.1016/j.jmr.2008.02.013. Epub 2008 Feb 16.

Indirect determination of chemical shift by coupling evolution during adiabatic pulses.

Journal of magnetic resonance (San Diego, Calif. : 1997)

Peter W A Howe

Affiliations

  1. Analytical Sciences, Syngenta Limited, Jealott's Hill Research Centre, Bracknell, Berkshire, RG42 6EY, UK. [email protected]

PMID: 18329920 DOI: 10.1016/j.jmr.2008.02.013

Abstract

The use of adiabatic 180 degrees X-pulses within INEPT refocusing periods results in chemical shift-dependent evolution of J-couplings. This has been viewed as a disadvantage and several methods of overcoming it have been suggested. This article shows that there is the potential to use this chemical shift dependence to determine heteronuclear chemical shift without a heteronuclear evolution time. In this way, it possible to estimate heteronuclear chemical shift indirectly from a single one-dimensional proton-observe spectrum and determine it with high accuracy from a extensively-folded two-dimensional proton-observe spectrum.

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