Jānis Šīre, Māris Kļaviņs
After Wise Use – The Future of Peatlands, Proceedings of the 13th International Peat Congress: Chemical, Physical and Biological Characteristics of Peat
acidity, humic-substances, peat
The acidity, elemental, functional and spectral characteristics of peat humic substances isolated from peat of different origin in Latvia are described. Structure of humic substances has been analyzed GC-MS and 1H NMR, 13C NMR. The GC-MS analysis reveals dominance of aromatic structures in the humic substances. Humic substances isolated from peat of more recent origin are more similar to humic substances from soil, but for humic substances originating from older sources greater degree of humification is evident.