Regularized resolvent transform for direct calculation of 45 degrees projections of 2D J spectra.
The regularized resolvent transform (RRT) has been applied in a novel way to J-resolved spectra. This involves the direct calculation of the 45 degrees projection without constructing the 2D spectrum. The results show a significant resolution enhancement over that obtained by the 45 degrees projection of a 2D Fourier spectrum, even for much larger signals. In particular, RRT is able to resolve peaks that belong to different overlapping multiplets in a very crowded spectral region, where the conventional technique fails for any signal size. The resolving power of this method along with the significantly shorter signals required, make this method a powerful tool in spectral assignment.
Armstrong
Geoffrey S
GS
Department of Chemistry, University of California, Irvine, CA 92697-2025, USA.
Chen
Jianhan
J
Cano
Kristin E
KE
Shaka
A J
AJ
Mandelshtam
Vladimir A
VA
D000465:Algorithms; D003198:Computer Simulation; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008280:Magnetics; D008958:Models, Molecular; D011522:Protons; D011786:Quality Control; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted; D013395:Sucrose / Q000737:chemistry*
D011522:Protons; D013395:Sucrose