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US 3,954,410 AGranted
Solvents for NMR spectroscopy
AssigneeMerck Patent Gesellschaft mit beschraenkter Haftung
InventorsLudwig Pohl, Werner Theysohn, Richard Unger
Life of this patent
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Abstract
Organic solvents containing less than 0.2 atom percent of .sup.13 C and which preferably are at least partially deuterated are produced from .sup.13 C-depleted gaseous carbon compounds and are advantageously employed as solvents for .sup.13 C NMR spectroscopy.
Claims8
A method of conducting NMR spectroscopy which comprises employing as an organic solvent for the spectroscopy an organic solvent containing carbon-13 in an amount less than 0.2 atom percent.
Dependencies are inferred from the claim text.