Chemical Characterization of Recent and Buried Woods by Analytical Pyrolysis Comparison of Pyrolysis Data with C Nmr and Wet Chemical Data
نویسنده
چکیده
In a previous study, selective degradation of carbohydrates versus lignin in buried woods was demonstrated by non-destructive spectroscopy (C NMR) and destructive wet chemical methods (acid hydrolysis and alkaline CuO oxidation). In this paper, spruce, alder and oak woods deposited in coastal sediments and their recent equivalents are characterized by pyrolysis-mass spectrometry and pyrolysis-gas chromatography-mass spectrometry. Pyroly sis data, wet chemical degradation and NMR data are in good agreement, indicating that flash pyrolysis methods are useful for fast detailed characterization of this type of organic matter. Biomass; gas chromatography; lignin; mass spectrometry; polysaccharides; pyrolysis; wood.
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