PFG NMR and internal magnetic field gradients in plant-based materials

PFG NMR and internal magnetic field gradients in plant-based materials

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...

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Bibliographic Details
Published in:Magnetic resonance imaging Vol. 20; no. 7; pp. 567 - 573
Main Authors: Nestle, Nikolaus, Qadan, Asal, Galvosas, Petrik, Süss, Wolfgang, Kärger, Jörg
Format: Journal Article
Language:English
Published: Netherlands 01-09-2002
Subjects:
Cellulose
Diffusion
Magnetic Resonance Spectroscopy - methods
Solanum melongena
Water
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Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0730-725X
DOI:10.1016/s0730-725x(02)00529-5