The structure of freshwater humic substances as revealed by 13C-NMR spectroscopy

Freshwater humic substances from Lake Celyn, Gwynedd, N. Wales have been investigated by 13C-NMR spectroscopy. Carboxyl, aromatic, o-alkyl and alkyl resonances can be recognised. Varying pulse delay from 0.43 s to 2.5 sec has little effect on the magnitude of the signal ascribed to aromatic carbon,...

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Veröffentlicht in:	Geochimica et cosmochimica acta 1981-01, Vol.45 (10), p.1743-1750
Hauptverfasser:	Wilson, M.A., Barron, P.F., Gillam, A.H.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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