Artifacts in sensitivity-enhanced HSQC

Authors
Turner, CJ Connolly, PJ Stern, AS
Citation
Cj. Turner et al., Artifacts in sensitivity-enhanced HSQC, J MAGN RES, 137(1), 1999, pp. 281-284
Citations number
11
Categorie Soggetti
Chemistry & Analysis","Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MAGNETIC RESONANCE
ISSN journal
10907807 → ACNP
Volume
137
Issue
1
Year of publication
1999
Pages
281 - 284
Database
ISI
SICI code
1090-7807(199903)137:1<281:AISH>2.0.ZU;2-5
Abstract
Proton-proton coupling can generate artifacts in sensitivity-enhanced HSQC spectra. These artifacts appear as cross-peaks involving remote protons. Th ey are caused by relayed coherence transfer during the back-transfer portio n of the pulse sequence. We present a product operator analysis of artifact formation and experimental results which demonstrate that the magnitude of these artifacts can exceed 10% of the main peak. (C) 1999 Academic Press.