Molecular Size Distribution and Spectroscopic Characterization of Humic and Fulvic Acids Extracted from Soils in Different Depth

증가할수록 휴믹산과 풀빅산분자의 카르복실기의 피크세기가 증가하는 특성을 보였다. Abstract: Humic and fulvic acids present in soil of different depth were extracted and their characteristics were analyzed as a basic study to evaluate the effect of humic substances on the behaviour of radioactive elements deposited on soil. Molecular size distribution of the humic and fulvic acids was measured by stirred cell ultrafiltration technique and the structural informations were obtained from their UV-Vis., IR and synchronous fluorescence (SyF) spectral analysis. Main molecular size ranges of the soil