Journal of Analytical Chemistry

, Volume 55, Issue 10, pp 926–928 | Cite as

Extraction of humic acids in two-phase aqueous polymeric systems

  • T. I. Nifant’eva
  • V. M. Shkinev
  • A. G. Zavarzina
  • V. V. Demin


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.


Humus Humic Acid Distribution Ratio Polyethylene Glycol Sodium Dextran Sulfate 
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  1. 1.
    Fomin, G.S.,Voda: Kontrol’ khimicheskoi, bakterial’noi i radiatsionnoi bezopasnosti po mezhdunarodnym standartam. Entsiklopedicheskii spravochnik (Water: Control of Quality and Chemical, Bacterial and Radiation Safety According to International Standards. Encyclopedia), Moscow: Protektor, 1993, p. 592.Google Scholar
  2. 2.
    Lur’e, Yu.Yu.,Unifitsirovannye metody analiza vod (Unified Methods for Water Analysis), Moscow: Khimiya, 1971, p. 370.Google Scholar
  3. 3.
    Zvarova (Nifant’eva), T.I., Shkinev, V.M., Vorob’eva, G.A.,et al., Microchim. Acta, 1984, vol. 3, p. 449.CrossRefGoogle Scholar
  4. 4.
    Spivakov, B.Ya., Nifant’eva, T.I., and Shkinev, V.M.,Aqueous Biphasic Separations: Biomolecules to Metal Ions, Rogers, R.D. and Eiteman, M.A., Eds., ACS, 1995, p. 83.Google Scholar
  5. 5.
    Allard, B., Boren, H., and Grimwell, A.,Humic Substances in the Aquatic and Terrestrial Environment, Berlin: Springer, 1991.Google Scholar
  6. 6.
    Varshal, G.M., Velyukhanova, T.K., Koshcheeva, I.Ya.,et al., Anal.iticheskaya khimiya redkikh elementov (Analytical Chemistry of Rare Elements), Moscow: Nauka, 1988, p. 112.Google Scholar
  7. 7.
    Linnik, P.N. and Nabivanets, B.I.,Formy Migratsii Metallov vPresnykh Poverkhnostnykh Vodakh (Forms of Migration of Metals in Fresh Surface Waters), Leningrad: Gidrometeoizdat, 1986.Google Scholar
  8. 8.
    Albertson, P.-A.,Partition of Cell Particles and Macromolecules, Stockholm: Almavist and Wiksel, 1971, 2nd ed. Translated under the titleRazdelenie kletochnykh chastits i makromolekul, Moscow: Mir, 1974, p. 33.Google Scholar

Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • T. I. Nifant’eva
    • 1
  • V. M. Shkinev
    • 1
  • A. G. Zavarzina
    • 2
  • V. V. Demin
    • 2
  1. 1.Vernadsky Institute of Geochemistry and Analytical ChemistryRussian Academy of SciencesMoscowRussia
  2. 2.Faculty of Soil ScienceMoscow State UniversityMoscowRussia

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