Artifacts in sensitivity-enhanced HSQC.
Proton-proton coupling can generate artifacts in sensitivity-enhanced HSQC spectra. These artifacts appear as cross-peaks involving remote protons. They are caused by relayed coherence transfer during the back-transfer portion 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.
Turner
C J
CJ
Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA. TURNER@CCNMR.MIT.EDU
Connolly
P J
PJ
Stern
A S
AS
D016477:Artifacts; D009682:Magnetic Resonance Spectroscopy; D008433:Mathematics; D013395:Sucrose / Q000737:chemistry
D013395:Sucrose