13C NMR and mass spectrometry of soil organic matter

• Authors: Galya Ivanova , Edward Randall
• Languages of publication: EN

Abstracts

EN

Liquid state, high resolution 13C NMR spectroscopy and mass spectrometry were used to study the composition and structure of soil organic matter (SOM) using soil extracts from two long-term experiments at the Rothamsted Experimental Station. Both one- and two-dimensional NMR techniques were applied. 13C NMR sub-spectra of the CHn (n=0...3) groups, obtained by the Distortionless Enhancement by Polarisation Transfer (DEPT) technique, were used for the elucidation of the qualitative and quantitative composition of humic and fulvic acids in the soils. The chemical structure of SOM was further analysed at the molecular level through Fast Atom Bombardment Mass Spectrometry (FABMS) and Gas Chromatography-Mass Spectrometry (GC/MS). Humic and fulvic extract results were not only compared to each other, but also to the solid state 13C NMR results for the complete soil sample.

Keywords

EN

soil organic matter; 13C NMR; DEPT; FABMS; GC/MS; Rothamsted soils

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2003
• Volume: 1
• Issue: 1
• Pages: 10-27

Dates

published

1 - 3 - 2003

online

1 - 3 - 2003

Contributors

author

Galya Ivanova

• Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

author

Edward Randall

• Department of Chemistry, Queen Mary, University of London, Mile End Road, E1 4NS, London, UK

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Identifiers

DOI

10.2478/BF02479254