NMR-Bildgebung an fallenden Filmen und reaktiven Gelkugeln

In this work the advanced features of NMR imaging (magnetic resonance imaging, MRI) were used to investigate two different systems. The first system was a fluid film running down a vertical plate. The second system was a sphere made from alginate gel in which an enzymatical driven reaction from 1-butanol and propionic acid towards the ester was performed. Theory of the used advanced features of MRI, q-space imaging (velocimetry) and chemical shift imaging (CSI), are described. Two q-space imaging sequences were employed to investigate the a free falling film and a liquid flow in a rectangular tube. One of these sequences was especially created for the needs on the free falling film. Due to this sequence the necessary measurement time could be reduced by a factor of 1000. The other sequence allowed to observe the motion in the film within a plane. CSI measurements were chosen to follow a esterification reaction within a sphere from alginate gel. In this gel an enzyme (Lipase) was enclosed which is a catalyst to the esterificaion reaction.

Grantor dc:publisher

Shaker

Year dc:date

2005

Author dc:creator

• Küppers, Markus

Contributors dc:contributor

• Blümich, Bernhard

• info:eu-repo/classification/ddc/660
• Rieselfilm
• Lipasen
• Immobilisierung
• Alginate
• Hydrogel
• Enzymreaktor
• NMR-Bildgebung
• Technische Chemie
• Magnetische Kernresonanz
• Fließgeschwindigkeit
• Flüssigkeitsfilm
• CSI
• inverse Abel-Transformation

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language

ger

Identifier

https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-123772%22

OAI identifier oai:identifier

oai:publications.rwth-aachen.de:62183