Enhanced 13C NMR by Thermal Mixing with Hyperpolarized 129XE
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United States of America Patent
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Sep 22, 2016
app pub date -
Mar 17, 2016
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Mar 17, 2016
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Abstract
A method of preparing a hydrogen-containing 13C compound test sample exhibiting an enhanced 13C nuclear magnetic resonance (NMR) signal when exposed to a 13C NMR pulse sequence is disclosed. In the disclosed method, the hydrogen-containing 13C compound is mixed with hyperpolarized 129Xe in the gaseous state, and the mixture is subsequently frozen within a magnetic field. The magnetic field strength is then reduced sufficiently so that spin polarization is transferred from the hyperpolarized 129Xe to the compound. The magnetic field strength is then increased, and the mixture is thawed to obtain the test sample.
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