한국지하수토양환경학회:학술대회논문집 (Proceedings of the Korean Society of Soil and Groundwater Environment Conference)
- 한국지하수토양환경학회 2002년도 추계학술발표회
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- Pages.191-194
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- 2002
토양 부식질의 추출 및 특성
Isolation and Characterization of Soil Humic Substances
초록
Humic acid, fulvic acid and humin present in volcanic ash soil were isolated by IHSS standard procedure and their characteristics were analyzed as a basic study to evaluate the effect of humic substances on the behaviour of pollutants in contaminated surface soil. The volcanic ash soil contained 42.1 % of total organic matter based on the oven-dried soil, and humin, humic and fulvic acids corresponded to 67.5 %, 15.2 %, 7.6 % of TOM respectively. Structural informations of the humic fractions were obtained from their elemental analysis and IR, CPMAS C-13 NMR spectral analysis and the differences among them are discussed with their C/H, O/C ratios and distributions of carbon types in the molecules.
키워드