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We report a methodology that allows identification and quantitative determination of individual acidic and neutral diterpenes in natural mixtures, using the computer-aided analysis of their 13C-NMR
spectra. The analytical procedure was validated on artificial mixtures and then applied to authentic oleoresins of Pinus nigra. Up to eleven diterpenes, which represented 63% of the total composition
of the oleoresin, were identified and quantified without previous separation or derivatization.
The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)