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Extraction of humic acids in two-phase aqueous polymeric systems

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Abstract

Extraction of humic acids isolated from various soils was studied in polyethylene glycol(NH4)2SO4, polyethylene glycol-dextran, and polyethylene glycol-dextran sodium salt two-phase aqueous polymeric systems. It was shown that, in all systems, humic acids are extracted into the polyethylene glycolrich phase. It was studied how the composition of the extraction system, molecular weight of the polymer, and the sample nature affect the distribution ratios of humic acids.

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Authors and Affiliations

  1. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, 117975, Moscow, Russia

    T. I. Nifant’eva & V. M. Shkinev

  2. Faculty of Soil Science, Moscow State University, Vorob’evy gory, 119899, Moscow, Russia

    A. G. Zavarzina & V. V. Demin

Authors
  1. T. I. Nifant’eva
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  2. V. M. Shkinev
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  3. A. G. Zavarzina
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  4. V. V. Demin
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Nifant’eva, T.I., Shkinev, V.M., Zavarzina, A.G. et al. Extraction of humic acids in two-phase aqueous polymeric systems. J Anal Chem 55, 926–928 (2000). https://doi.org/10.1007/BF02756081

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  • DOI: https://doi.org/10.1007/BF02756081

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