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Title

Comparative analysis of the alkyl breakdown products from soil humic acids by thermal and wet chemical degradation methods

AuthorsTinoco, Pilar; Almendros Martín, Gonzalo ; Sanz Perucha, Jesús ; González-Vila, Francisco Javier
Issue Date2002
CitationPyrolysis 2002. 15th International Symposium on Analytical and Applied Pyrolysis: 47 (2002)
AbstractTotal amounts and distribution patterns of alkyl degradation compounds were analyzed in soil humic acids isolated from a variety of continental Mediterranean ecosystems in Central Spain. Soil physical and chemical characteristics, humic acid composition and biomarker assemblages were studied in 16 representative, undisturbed or degraded forest ecosystems including broad-leaved autochthonous forests, bush formations, cultures, pastures and pine forests. The humic acid fraction of these soils was previously characterized by routine spectroscopic methods (UV-visible, FTIR, 13C and 15N CPMAS NMR). In the present study qualitative and quantitative features of the alkyl domain of humic acids are examined by comparing the structural information provided by independent destructive techniques, with special emphasis on the mild alkaline degradation (sodium perborate) and thermal degradation by Curie-point pyrolysis.
Description6 pages. Comunicación presentada al citado simposio, celebrado del 17-20 de septiembre, 2002, en Leoben (Austria).
URIhttp://hdl.handle.net/10261/55125
Appears in Collections:(IQOG) Comunicaciones congresos
(IRNAS) Comunicaciones congresos
(CCMA) Comunicaciones congresos
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