Lignins humic substance analysis

Standley, L.J. and Kaplan, L.A. (1998) Isolation and analysis of lignin-derived phenols in aquatic humic substances improvements on the procedures. Org. Geochem., 28, 689-697. 

Other studies of humic substances using pyrolysis were done for evaluating the seasonal variations in humic materials [10] in different soils, for the analysis of marine deposits [11], the analysis of composts [12] or of degraded lignins [3]. 

As indicated before, the distribution of carbon in humic substances is often determined as part of a proximate analysis in which soluble phenols, carbohydrates, lipids, and lignins are removed by acid hydrolysis or selective solvation to obtain data of the type presented in Table 9. Perhaps a less... 

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