Characterization of humic acid fractions by C-13 nuclear magnetic resonance spectroscopy

Environmental Technology Letters
By: , and 

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Abstract

Soil humic acids from different environments were fractionated by adsorption chromatography on Sephadex and characterized by C‐13 nuclear magnetic resonance (NMR) spectroscopy. The C‐13 NMR spectra of the fractions consist of some sharp, well‐resolved lines and some broad bands in contrast to the spectra of the unfractionated humic acids, where the bands are broader and less well‐resolved. The marked increase in resolution is apparently due to increased homogeneity of the fractions. These spectra are compared to the spectra of model compounds.

Publication type Article
Publication Subtype Journal Article
Title Characterization of humic acid fractions by C-13 nuclear magnetic resonance spectroscopy
Series title Environmental Technology Letters
DOI 10.1080/09593338809384538
Volume 9
Issue 1
Year Published 1988
Language English
Publisher Taylor & Francis
Contributing office(s) National Research Program - Central Branch
Description 10 p.
First page 53
Last page 62
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