Isolation and Characterization of Aquatic Humic Acid and Fulvic Acid

수질계의 Humic Acid와 Fulvic Acid의 분리 및 특성

  • Rhee, Dong Seok (Department of Environmental Engineering, Kangwon National University)
  • 이동석 (강원대학교 공과대학 환경공학과)
  • Received : 2001.04.16
  • Published : 2002.02.25

Abstract

The dissolved organic carbon extracted from groundwater is separated into humic acid and fulvic acid. They are characterized for their chemical composition, spectroscopic characteristics using UV/VIS, IR and solid state $^{13}C-NMR$ spectroscopy, proton exchange capacity and molecular size distribution. The results are comparable with the literature data. The study explains that the aquatic humic and fulvic acid in this experiment are site-specipic and polydisperse natural organic matter with considerable proton exchange capacity.

Keywords

DOC;humic acid;fulvic acid;$^{13}C-NMR$;proton exchange capacity;molecular size distribution

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