In 2006, a sample of fulvic acid was isolated in 14% yield from Pony Lake, Antarctica using the XAD adsorption method. That sample of Pony Lake fulvic acid is a reference sample (ID 1R109F) of the International Humic Substances Society (IHSS), and it is currently available to scientists throughout the world. To date, that sample has been used in more than 300 studies, and it is often considered to be an ecological end-member from a lignin-free environment. This presentation will compare Pony Lake fulvic acid with a new sample of natural organic matter that was isolated in 85% yield from Pony Lake using the coupled reverse osmosis/electrodialysis (RO/ED) method. The NOM and fulvic acid samples have significantly different UV-visible and fluorescence spectra, size exclusion chromatograms, and Fourier transform ion cyclotron mass spectra. These differences will be presented and discussed.<br/>

Isolation and characterization of natural organic matter from Pony Lake, Antarctica

253rd National Meeting (2017)

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