Indirect covariance NMR spectroscopy

  • Zhang F
  • Br??schweiler R
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A novel NMR scheme is presented that establishes homonuclear spin correlations without requiring direct detection of the spin species. This covariance NMR method is experimentally demonstrated for a mixture of amino acids and for the uniformly 13C-labeled cyclic decapeptide antamanide using a 13C-edited TOCSY experiment. The method opens up new avenues for the experimental analysis of molecules containing insensitive spins encountered in biomolecular NMR and analytical chemistry including metabolomics.

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  • Fengli Zhang

  • Rafael Br??schweiler

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