Producing over 100 ml of highly concentrated hyperpolarized solution by means of dissolution DNP.

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Serval ID
serval:BIB_BF30B49B7BD7
Type
Article: article from journal or magazin.
Collection
Publications
Title
Producing over 100 ml of highly concentrated hyperpolarized solution by means of dissolution DNP.
Journal
Journal of Magnetic Resonance (san Diego, Calif. : 1997)
Author(s)
Comment A., Rentsch J., Kurdzesau F., Jannin S., Uffmann K., van Heeswijk R.B., Hautle P., Konter J.A., van den Brandt B., van der Klink J.J.
ISSN
1096-0856 (Electronic)
ISSN-L
1090-7807
Publication state
Published
Issued date
2008
Volume
194
Number
1
Pages
152-155
Language
english
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Abstract
New low-temperature inserts compatible with an existing hyperpolarizer were developed to dynamically polarize nuclei in large samples. The performance of the system was tested on 8 ml glassy frozen solutions containing 13C-labeled molecules and doped with nitroxyl free radicals. The obtained 13C low-temperature polarization was comparable to the one measured on 20 times smaller sample volume with only 3-4 times higher microwave power. By using a dissolution insert that fits to the new design, it was possible to obtain about 120 ml of room-temperature hyperpolarized solution. The polarization as well as the molecule concentration was comparable to the values obtained in standard size hyperpolarized samples. Such large samples are interesting for future studies on larger animals and possibly for potential clinical applications.
Keywords
Carbon Isotopes/chemistry, Carbon Isotopes/isolation & purification, Chemical Fractionation/methods, Isotope Labeling/methods, Magnetic Resonance Spectroscopy/methods, Solutions/chemistry, Solutions/isolation & purification, Static Electricity
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13/12/2012 17:29
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20/08/2019 16:33
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