NON AQUEOUS SOLVENTS OR MIXTURES FOR DNP NMR SPECTROSCOPY, METHOD TO PREPARE SAID SOLVENTS OR MIXTURES AND USE OF SAID SOLVENTS OR MIXTURES
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United States of America Patent
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Jul 7, 2016
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Jun 8, 2012
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Jun 8, 2012
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Non aqueous solvents or mixtures for DNP NMR spectroscopy, method to prepare said solvents or mixtures and use of said solvents or mixtures The present invention concerns a method to determine the efficiency of a solvent to impregnate a sample material for use in a dynamic nuclear polarization (DNP) nuclear magnetic resonance (NMR) experiments, characterized in that the method comprising: —selecting a non-aqueous solvent, —providing a polarizing agent that is soluble in the non-aqueous solvent, —dissolving the polarizing agent in the non-aqueous solvent, —impregnating or dissolving the sample material with the non-aqueous solvent containing the polarizing agent, —performing a solid state DNP NMR experiment on the impregnated sample material, —determining a DNP enhancement factor of the DNP NMR experiment.
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