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Techniques for investigating humic substances. III. Fractionation of humic substances using Amberlite XAD-8 resin



Techniques for investigating humic substances. III. Fractionation of humic substances using Amberlite XAD-8 resin



Anales de Edafologia y Agrobiologia 38(9/10): 1693-1698



Amberlite XAD-8 resin was successfully used on the fractionation of the humic substances of an Haplustoll (Chernozem). These humic substances could be distinguished by their hydrophilic or hydrophobic characters. One third of the hydrophobic substances were neutral. The acid substances could be fractionated into fulvic and humic components, which were preferentially adsorbed at pH 4.0.

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