The structure and origin of properties of humic acids (HA) are still a matter of great concern. To enter into the structure of HA, a fractionation procedure was carried on, that combines both size cut-off membrane and pH grade fractionation on a XAD-8 column. A soil humic acid (SHA) and a lignite humic acid (LHA) were fractioned. Key physicochemical properties of the fractions were measured. Moreover a critical comparison was carried out between the fractions and the original unfractioned humic acids, in order to assess whether there is additivity to the properties of the fractions vs. the original unfractioned HA.
On the additivity of the properties of humic acid fractions
Marios Drosos
;
2010-01-01
Abstract
The structure and origin of properties of humic acids (HA) are still a matter of great concern. To enter into the structure of HA, a fractionation procedure was carried on, that combines both size cut-off membrane and pH grade fractionation on a XAD-8 column. A soil humic acid (SHA) and a lignite humic acid (LHA) were fractioned. Key physicochemical properties of the fractions were measured. Moreover a critical comparison was carried out between the fractions and the original unfractioned humic acids, in order to assess whether there is additivity to the properties of the fractions vs. the original unfractioned HA.File in questo prodotto:
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