Hyperpolaritzation of compounds for NMR, in particular by means of PHIP
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United States of America Patent
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Apr 10, 2012
Grant Date -
Sep 2, 2010
app pub date -
Jun 17, 2008
filing date -
Jun 18, 2007
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Abstract
An NMR method is presented having enhanced sensitivity on a compound comprising hyperpolarizable nuclei, in particular applying enhanced PHIP. Polarization is thereby transferred from a prepared fluid, which is enriched with symmetric molecules of a particular spin state (e.g. para-hydrogen enriched), directly to the hyperpolarizable nuclei of a compound, without altering the chemical identity of the compound in this process. Spin transfer is achieved using a template having sites of ordered environment, and the fluid and the compound are brought together in the presence of the template. Polarization transfer to the hyperpolarizable nuclei of the compound is thereby easier to perform and can be applied to a broader scope of compounds.
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