Back to Search
Start Over
Combining Fourier phase encoding and broadband inversion toward J-edited spectra.
- Source :
-
Journal of magnetic resonance (San Diego, Calif. : 1997) [J Magn Reson] 2018 Jun; Vol. 291, pp. 1-7. Date of Electronic Publication: 2018 Mar 20. - Publication Year :
- 2018
-
Abstract
- Nuclear magnetic resonance (NMR) spectra are often utilized for gathering accurate information relevant to molecular structures and composition assignments. In this study, we develop a homonuclear encoding approach based on imparting a discrete phase modulation of the targeted cross peaks, and combine it with a pure shift experiments (PSYCHE) based J-modulated scheme, providing simple 2D J-edited spectra for accurate measurement of scalar coupling networks. Chemical shifts and J coupling constants of protons coupled to the specific protons are demonstrated along the F <subscript>2</subscript> and F <subscript>1</subscript> dimensions, respectively. Polychromatic pulses by Fourier phase encoding were performed to simultaneously detect several coupling networks. Proton-proton scalar couplings are chosen by a polychromatic pulse and a PSYCHE element. Axis peaks and unwanted couplings are complete eradicated by incorporating a selective COSY block as a preparation period. The theoretical principles and the signal processing procedure are laid out, and experimental observations are rationalized on the basis of theoretical analyses.<br /> (Copyright © 2018 Elsevier Inc. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1096-0856
- Volume :
- 291
- Database :
- MEDLINE
- Journal :
- Journal of magnetic resonance (San Diego, Calif. : 1997)
- Publication Type :
- Academic Journal
- Accession number :
- 29609072
- Full Text :
- https://doi.org/10.1016/j.jmr.2018.02.021