Summary
Infrared and proton resonance spectra have been used to characterize fraction extracted sequentially from humic and fulvic acids by diethylether, acetone, dioxane, tetrahydrofuran, pyridine and dimethylformamide. The results showed that the same solvents extracted structurally similar components from both humic and fulvic acids. On the other hand, the spectra showed solvent-dependent differences, some being characteristic for a preponderance of aliphatic structures, others for aromatic structures.
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References
Bellamy L J 1975 The Infrared Spectra of Complex Molecules. Chapman & Hall, London.
Bhacca N S, Johnson L F and Shoolery J N 1962 NMR Spectra Catalog, Vol. 1. Analytical Instruments Division of Varian Associates, Palo Alto, California.
Flaig W, Beutelspacher H and Rietz E 1975 Chemical composition and physical properties of humic substances. Soil Components (Ed. J E Gieseking). Vol. 1, pp 1–211, Springer-Verlag, New York.
Grant D 1977 Chemical structure of humic substances. Nature, London 270, 709–710.
Khan S U and Schnitzer M 1971 Further investigations on the chemistry of fulvic acid, a soil humic fraction. Can. J. Chem. 49, 2303–2309.
Lakatos B, Meisel J and Mady G 1977 Biopolymer-metal complex systems. I. Experiments for the preparation of high purity peat humic substances and their metal complexes. Acta Agron. Acad. Sci. Hung. 26, 259–271.
Lentz H and Ziechmann W 1971 Physical-chemical properties of humic acids. Studies about Humus. Trans. Intern. Symp. Humus et Planta 5, 241–245, Prague.
Nakanishi K 1982 Infrared AbsorptionSpectroscopy. Holden-Day, San Francisco.
Ogner G 1979 The [13C]nuclear magnetic resonance of a methylated humic acid. Soil Biol. Biochem. 11, 105–108.
Ogner G and Schnitzer M 1971 Chemistry of fulvic acid, a soil humic fraction, and its relation to lignin. Can. J. Chem. 49, 1053–1063.
Ortiz de Serra M and Schnitzer M 1972 Extraction of humic acids by alkali and chelating resin. Can. J. Soil Sci. 52, 365–374.
Schnitzer M and Khan S U 1978 Soil Organic Matter, Elsevier, Amsterdam.
Sciacovelli O, Senesi N, Solinas V and Testini C 1977 Spectroscopic studies on soil organic fractions. I. Ir and NMR spectra. Soil Biol. Biochem. 9, 287–293.
Sciacovelli O, Gessa C, Ruggiero P and Testini C 198013C NMR spectra of soil organic fractions extracted with organic solvents. Soil Biol. Biochem. 12, 389–395.
Stevenson F J and Goh K M 1971 Infrared spectra of humic acids and related substances. Geochim. Cosmochim. Acta 35, 471–483.
Vila F J G, Lentz H and Lüdemann H D 1976 FT-C13 nuclear magnetic resonance spectra of natural humic substances. Biochem. and Biophys. Res. Commun. 72, 1063–1070.
Wilson M A and Goh K M 1977 C-13 nuclear magnetic resonance spectroscopy of humic substances. Plant and Soil 46, 287–289.
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Gessa, C., Cabras, M.A., Micera, G. et al. Spectroscopic characterization of extracts from humic and fulvic fractions: IR and1H NMR spectra. Plant Soil 75, 169–177 (1983). https://doi.org/10.1007/BF02375563
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DOI: https://doi.org/10.1007/BF02375563