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  Home > JCE Print > Journal of Chemical Education > Issues > 2004  > July  >
In the Laboratory
Superoxygenated Water as an Experimental Sample for NMR Relaxometry
Nikolaus Nestle
Institute of Hydrochemistry, Technische Universität München, D-81377 München, Germany

Marwan Dakkouri
Department of Electrochemistry, University of Ulm, D-89069 Ulm, Germany

Hubert Rauscher
Department of Surface Chemistry and Catalysts, University of Ulm, D-89069 Ulm, Germany

Cover
July 2004
Vol. 81 No. 7
p. 1040
Abstract
Measuring the oxygen content in superoxygenated table waters and following the oxygen loss upon storage of such waters in open containers is presented as an experiment for NMR relaxometry in the student lab. The influence of dissolved paramagnetic oxygen molecules on the relaxation behaviour of the water protons is both of interest as a possible source of artifacts in NMR spectroscopy and as a possible contrast mechanism in biomedical applications of magnetic resonance imaging (MRI).
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*  Citation
 Nestle, Nikolaus; Dakkouri, Marwan; Rauscher, Hubert. J. Chem. Educ. 2004 81 1040.
*  Keywords
 Food Science; Instrumental Methods; Laboratory Instruction; NMR Spectrometry; Nutrition; Physical Chemistry; Water / Water Chemistry
*  History
 Created:
Last Updated:		 May 27, 2004
January 19, 2005
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