Cross polarization, magic-angle spinning 13C nuclear magnetic resonance spectroscopy of soil humic fractions
作者： C. Saiz-Jimenez , Bruce L. Hawkins , Gary E. Maciel
DOI: 10.1016/0146-6380(86)90108-7
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摘要: Abstract Cross polarization, magic-angle spinning 13 C nuclear magnetic resonance spectroscopy was used to characterize humic fractions isolated from different soils. The acid are more aromatic than the humin fractions, probably due higher polyssaccharide content of humins. However, fulvic corresponding and fractions. These results can be interpreted in terms isolation procedure, because high affinity Polyclar AT for phenols aromaticities as compared with other methods (e.g. charcoal).
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