Abstract
AbstractHumic materials from the O‐horizon of a Ferric Podzol and from the H‐horizon of a Sapric Histosol were fractionated by dialysis into a low and a high molecular weight fraction. Each fraction was characterized by quantitative solution C‐13‐NMR. The low molecular weight fractions showed remarkably well resolved C‐13 spectra, due to carbohydrates and their decomposition products.
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