ANALYSIS OF COMPLEX-MIXTURES BY C-13 NMR- SPECTROSCOPY .1.

This review is concerned with the use of carbon-13 NMR spectroscopy as an analytical tool for the identification of the individual component s of complex mixtures. We describe, comparatively to those obtained by other techniques, the results of studies devoted to several families of compounds found in different fields: hydrocarbons of gasolines, dis tillates and crude oils; triglycerides and free fatty acids in vegetab le oils and animal fats; terpenes in essential oils; sugars in honeys; alcohols and acids in wines; phenols in biomass pyrolysis liquids. Th e combination of carbon-13 NMR with other techniques, as well as the p ossibilities of quantification, are discussed.