NMR characterization of humic acid fractions from different Philippine soils and sediments
作者： R.L. Wershaw , D.J. Pinckney , E.C. Llaguno , V. Vicente-Beckett
DOI: 10.1016/S0003-2670(00)81223-4
关键词: Soil water 、 Environmental chemistry 、 Sorption 、 Nuclear magnetic resonance spectroscopy 、 Soil classification 、 Chemistry 、 Humic acid 、 Nuclear chemistry 、 NMR spectra database 、 Humus 、 Organic matter
摘要: Abstract Humic acids from a peat soil, an agricultural soil and lake sediment the Philippines were fractioned by sorption chromatography on cross-linked dextran gels (Sephadex 1 ). The NMR spectra of these fractions have sharp, well resolved bands which can be attributed to lignin-like structures, carbohydrates aliphatic groups. Similar been observed in humic acid other environments; however, chemical shifts some lines vary one another. These appear arise defined, partially decomposed plant components probably are diagnostic types plants that into acids. carbohydrate region best may prove most useful identifying precursors any particular fraction.
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Y. Rubinsztain, S. Yariv, P. Ioselis, Z. Aizenshtat, R. Ikan, Characterization of melanoidins by IR spectroscopy—I. Galactose-glycine melanoidins Organic Geochemistry. ,vol. 9, pp. 117- 125 ,(1986) , 10.1016/0146-6380(86)90101-4
Kenneth M. Holtzclaw, Garrison Sposito, Gordon R. Bradford, Analytical Properties of the Soluble, Metal-Complexing Fractions in Sludge-Soil Mixtures: I. Extraction and Purification of Fulvic Acid1 Soil Science Society of America Journal. ,vol. 40, pp. 254- 258 ,(1976) , 10.2136/SSSAJ1976.03615995004000020019X
J. C. Lobartini, K. H. Tan, Differences in Humic Acid Characteristics as Determined by Carbon‐13 Nuclear Magnetic Resonance, Scanning Electron Microscopy, and Infrared Analysis Soil Science Society of America Journal. ,vol. 52, pp. 125- 130 ,(1988) , 10.2136/SSSAJ1988.03615995005200010022X
C. Saiz-Jimenez, Bruce L. Hawkins, Gary E. Maciel, Cross polarization, magic-angle spinning 13C nuclear magnetic resonance spectroscopy of soil humic fractions Organic Geochemistry. ,vol. 9, pp. 277- 284 ,(1986) , 10.1016/0146-6380(86)90108-7
Knut P. Kringstad, Roland Mörck, 13C-NMR Spectra of Kraft Lignins Holzforschung. ,vol. 37, pp. 237- 244 ,(1983) , 10.1515/HFSG.1983.37.5.237
K. Thorn, J. Rice, R. Wershaw, P. MacCarthy, C-13 NMR characterization of humic materials isolated by an MIBK partitioning procedure Science of The Total Environment. ,vol. 62, pp. 185- 188 ,(1987) , 10.1016/0048-9697(87)90499-2
M. Schnitzer, C. M. Preston, Analysis of Humic Acids by Solution and Solid-state Carbon-13 Nuclear Magnetic Resonance Soil Science Society of America Journal. ,vol. 50, pp. 326- 331 ,(1986) , 10.2136/SSSAJ1986.03615995005000020015X
T HAMMOND, D CORY, W RITCHEY, H MORITA, High resolution solid state 13C n.m.r. of Canadian peats Fuel. ,vol. 64, pp. 1687- 1695 ,(1985) , 10.1016/0016-2361(85)90395-3
M. Schnitzer, C. M. Preston, Effects of acid hydrolysis on the13C NMR spectra of humic substances Plant and Soil. ,vol. 75, pp. 201- 211 ,(1983) , 10.1007/BF02375565
Alexander P. Tulloch, 13CNMR Spectra of β-diketones from waxes of the gramineae Phytochemistry. ,vol. 24, pp. 131- 137 ,(1985) , 10.1016/S0031-9422(00)80822-5