title: Methods for peak assignment in low-resolution multidimensional NMR cross-correlation relaxometry.
abstract: Several NMR protocols are presented for assigning peaks in complex T1-T2 spectra, including the effects of varying the spectrometer frequency and the CPMG pulsing rate. Extensions into a third dimension based on chemical-shift; diffusion- and field-cycled weighted T1-T2 cross-correlation methods are also explored as a means of peak assignment. We illustrate the power of these novel techniques with reference to simple aqueous sucrose solutions, but the methodology should be generally applicable.
authors.affiliation: Institute of Food Research, Norwich Research Park, Colney, Norwich, UK.
authors.forename: N
authors.initials: N
authors.lastname: Marigheto
authors.forename: L
authors.initials: L
authors.lastname: Venturi
authors.forename: D
authors.initials: D
authors.lastname: Hibberd
authors.forename: K M
authors.initials: KM
authors.lastname: Wright
authors.forename: G
authors.initials: G
authors.lastname: Ferrante
authors.forename: B P
authors.initials: BP
authors.lastname: Hills
mesh_terms: D000465:Algorithms; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009010:Monte Carlo Method; D012815:Signal Processing, Computer-Assisted; D012996:Solutions; D013395:Sucrose / Q000737:chemistry*
chemical_list: D012996:Solutions; D013395:Sucrose