Adsorption Effects in Gel Filtration of Humic Acid.

@article{Lindqvist1967AdsorptionEI,
  title={Adsorption Effects in Gel Filtration of Humic Acid.},
  author={Ingvar Lindqvist and L. Rikkinen and G{\"o}ran O. Steen and Robert D. H. Murray and Gunter Hagen},
  journal={Acta Chemica Scandinavica},
  year={1967},
  volume={21},
  pages={2564-2566}
}
THE SUPRAMOLECULAR STRUCTURE OF HUMIC SUBSTANCES
The scientific understanding of the molecular size and shape of humic substances (HS) is critically reviewed. The traditional view that HS are polymers in soil is not substantiated by any direct
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Effect of pH on the filtration of aquatic humus using gels and membranes
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    Schweizerische Zeitschrift für Hydrologie
  • 2006
The colour of aquatic humus increases with pH. The ‘molecular weight distribution’ of a concentrated humus sample has been studied at diffrent pH-levels and ionic strength by use of a molecular sieve
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TLDR
The ultramembrane filtration technique is considered to be preferable for desalting and molecular size fractionation of aquatic humus and results of a combined use of the two methods reported.
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SummarySoil humic acid was fractionated on a molecular weight basis either using Sephadex gel filtration or electrophoresis on a discontinuous polyacrylamide gel. Low and high molecular weight
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