Journal of Radioanalytical and Nuclear Chemistry

, Volume 208, Issue 2, pp 577–592 | Cite as

Preparation and characterization of humic and fulvic acid working standards—practical experience

  • J. Kandráč
  • M. Hutta
  • M. Foltin


Two fractions of both fulvic acids (FA) and humic acid (HA) were prepared by fractionation method of Pierce and Felbeck5 involving acid hydrolysis of soil rests. This step increases recovery of both FA and HA considerably what suggest us need for slight modification of IHSS method in some cases. The weight loss, change in organic carbon content and visible spectra are figures of merit discussed. After detailed characterization these humic substances (HS) will serve as the working standards for study of interactions between organomercurials and organic part of soil.


Physical Chemistry Hydrolysis Inorganic Chemistry Organic Carbon Fractionation 
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Copyright information

© Akadémiai Kiadó 1996

Authors and Affiliations

  • J. Kandráč
    • 1
  • M. Hutta
    • 1
  • M. Foltin
    • 1
  1. 1.Department of Analytical Chemistry, Faculty of Natural SciencesComenius UniversityBratislavaSlovak Republic

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