Browsing School of Earth and Atmospheric Sciences (EAS) by Subject "Marine"
Now showing items 1-5 of 5
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Composition and cycling of natural organic matter: Insights from NMR spectroscopy
(Georgia Institute of Technology, 2005-11-28)Different aspects of natural organic matter composition and cycling have been studied using solid-state 13C and 31P Nuclear Magnetic Resonance (NMR) spectroscopy. Depending on the specific study, complementary analytical ... -
Enhanced dissolved organic matter recovery from saltwater samples with coupled electrodialysis and solid phase extraction
(Georgia Institute of Technology, 2015-12-01)Complexities associated with dissolved organic matter (DOM) isolation from seawater have hampered compositional characterization of this key component of global carbon and nutrient cycles. Two techniques, Electrodialysis ... -
Evidence for manganese-catalyzed nitrogen cycling in salt marsh sediments
(Georgia Institute of Technology, 2006-04-12)Fixed nitrogen is important as a nutrient for organic matter formation and as an electron donor (nitrification) and acceptor (denitrification) for energy generation, but it is scarcely available in aquatic systems. ... -
Marine dissolved organic phosphorus composition: insights from samples recovered using combined electrodialysis/reverse osmosis
(Georgia Institute of Technology, 2009-07-01)The dominant organic phosphorus compound classes were characterized in marine samples using a new, high recovery method for isolating and concentrating bulk dissolved organic matter (DOM) called combined electrodialysis+reverse ... -
The biogeochemical source and role of soluble organic-Fe(III) complexes in continental margin sediments
(Georgia Institute of Technology, 2014-09-10)In the past couple of decades, the discovery that iron is a limiting nutrient in large regions of the ocean has spurred much research into characterizing the biogeochemical controls on iron cycling. While Fe(II) is soluble ...