title: PFG NMR and internal magnetic field gradients in plant-based materials.
abstract: In this contribution, it is demonstrated that inner magnetic field gradients can seriously affect the results of stimulated echo PFG NMR experiments on plant-based materials even if there is no notable content of paramagnetic substances. Such effects could be observed both in experiments on water in pharmaceutical grade cellulose powder materials and on eggplant fruit tissue. In both cases, it was observed that the effects of internal magnetic field gradients led to different relative values of the diffusion coefficient compared to values obtained with a gradient-compensating pulse sequence.
authors.affiliation: Universität Leipzig, Abteilung Grenzflächenphysik, Linnéstrasse 5, D-04103 Leipzig, Germany. nikolaus.nestle@ch.tum.de
authors.forename: Nikolaus
authors.initials: N
authors.lastname: Nestle
authors.forename: Asal
authors.initials: A
authors.lastname: Qadan
authors.forename: Petrik
authors.initials: P
authors.lastname: Galvosas
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Süss
authors.forename: Jörg
authors.initials: J
authors.lastname: Kärger
mesh_terms: D002482:Cellulose; D004058:Diffusion; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D032323:Solanum melongena; D014867:Water
chemical_list: D014867:Water; D002482:Cellulose