Structural information obtained from spectral analysis (UV-VIS, IK,1H NMR) of particle size fractions in two humic acids

Soil Science and Plant Nutrition

Volumn 42, Issue 2, 1996, Pages 355-360

  Kawahigashi, Masayuki ^a   Fujitake, Nobuhide ^a   Takahashi, Takehiko ^a  

^a KOBE UNIVERSITY   (Japan)

Author keywords

1H NMR; Homologous series; Humic acid structure; Successive gel permeation chromatography

Indexed keywords

EID: 0029758989     PISSN: 00380768     EISSN: 17470765     Source Type: Journal    
DOI: 10.1080/00380768.1996.10415105     Document Type: Article

References (12)

1. Hayase, K. And Tsubota, H. 1983: Sedimentary humic acid and fulvic acid as surface active substances. Geochim. Cosmochim. Acta, 30, 151-162.
2. Kawahigashi, M., Fujitake, N., Azuma, J., and Takahashi, T. 1995: Preparation of humic acid fractions with a definite range of particle sizes by gel permeation chromatography (GPC). Soil Sci. Plant Nutr., 41, 147-150
3. Malcolm, R.L. 1990: The uniqueness of humic substances in each of soil, stream and marine environments. Anal. Chim. Acta, 232, 19-30.
4. Nobili, M., Gjessing, E., and Sequi, P. 1989: Size and shape of humic substances by gel chromatography. In Flumic Substances II, Ed. M.H.B. Hayes, P. Maccarthy, R.L. Malcolm, and R.S. Swift, p. 561-591, John Wiley & Sons, Chichester
5. Ricca, G., Federico, L., Astri, C., and Gallo, R. 1993: Structural investigations of humic acid from leonardite by spectroscopic methods and thermal analysis. Geoderma, 57, 263-274.
6. Summer, R.S., Cornel, P.K., and Roberts, P.V. 1987: Molecular size distribution and spectroscopic characterization of humic substances. Sci. Total Environ., 62, 27-37.
7. Swift, R.S., Leonald, R.L., Newman, R.H., and Theng, B.K.G. 1992: Changes in humic acid composition with molecular weight as detected by 13C-nuclear magnetic resonance spectroscopy. Sci. Total Environ., 117/118, 53-61
8. Tomikawa, A. And Oba, Y. 1986: Characteristics of soil humic substances fractionated with respect to particle weight. Iv. Optical properties of particle (molecular) weight fractions of humic acids. Jpn. J. Soil Sci. Plant Nutr., 57, 55-63 (in Japanese)
9. Tomikawa, A. And Oba, Y. 1991: Characteristics of soil humic substances fractionated with respect to particle weight. Vi. Particle weight distribution, optical properties and infrared absorption spectra of fractions of humic acids with different particle weight. Soil Sci. Plant Nutr., 37, 211-221.
10. Tsutsuki, K. And Kuwatsuka, S. 1979: Chemical studies on soil humic acids. Iv. Amino acid, phenol and sugar composition in the acid hydrolyzable fraction of humic acids. Soil Sci. Plant Nutr., 25, 29-38.
11. Tsutsuki, K. And Kuwatsuka, S. 1984: Molecular size distribution of humic acids affected by the ionic strength and the degree of humification. Soil Sci. Plant Nutr., 30, 151-162.
12. Yonebayashi, K. And Hattori, T. 1989: Chemical and biological studies on environmental humic acids. Ii. *H NMR and IR spectra of humic acids. Soil Sci. Plant Nutr., 35, 383-392