Spectroscopic characterization of extracts from humic and fulvic fractions: IR and1H NMR spectra |
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| Authors: | C. Gessa M. A. Cabras G. Micera M. Polemio C. Testini |
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| Affiliation: | (1) Istituto di Chimica Agraria dell'Università, Via de Nicola, 07100 Sassari, Italy;(2) Istituto di Chimica Generale ed Inorganica dell'Università, Via Vienna 2, 07100 Sassari, Italy;(3) Istituto di Chimica Agraria dell'Università, Via G. Amendola 165/1, 70100 Bari, Italy |
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| Abstract: | ![]()
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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| Keywords: | Organic matter IR spectroscopy 1H NMR spectroscopy |
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