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The Separation of Low Molecular Weight Humic Acid Fractions and their Characterisation by HR‐C‐13‐NMR in Solution
Author(s) -
Fründ R.,
Lüdemann H.D.,
Zech Wolfgang
Publication year - 1988
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19881510506
Subject(s) - humic acid , chemistry , podzol , fraction (chemistry) , decomposition , nmr spectra database , ferric , histosol , chromatography , analytical chemistry (journal) , spectral line , inorganic chemistry , organic chemistry , soil water , soil organic matter , geology , fertilizer , physics , astronomy , soil science , soil biodiversity
Humic 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.