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Kieber, Robert

UNCW

There are 6 item/s.

TitleDateViewsBrief Description
The photodegradation of domoic acid and the effects of metal chelation 2009 628 Domoic acid added to 0.2 µm-filtered Wrightsville Beach, NC seawater (WBSW) to a final concentration of 100 nM rapidly photodegraded to 75% of its initial concentration under simulated sunlight after ten hours of irradiation. The average first order ...
Characterization of chromophoric dissolved organic matter with iron chelates in rain water 2009 593 The existence of Fe(II) and Fe(III) complexed CDOM has important ramifications for the speciation of iron in atmospheric waters. The Fe(III)-CDOM complex is a precursor to Fe(II) photochemical production where a ligand to metal charge transfer (LM...
Mercury concentration and speciation in coastal rainwater 2009 1140 Mercury exists in mainly two oxidation states in the atmosphere, Hg0 and Hg(II). Inorganic divalent mercury, Hg(II), has a greater solubility; therefore is in higher concentration in rainwater, than Hg0. The toxic species, methylmercury is an organ...
Biogeochemical cycling of domoic acid and its isomers in the ocean 2009 1167 Domoic acid, a non-protein amino acid, is a neurotoxin produced by species of the marine diatom Pseudo-nitzschia. Adsorption of dissolved domoic acid (DA) and its geometrical isomers (iso-DAs D, E, and F) was assessed in filtered seawater solutions...
Chromophoric dissolved organic matter in coastal rainwater 2009 1169 Chromophoric dissolved organic matter (DOM) was measured in 37 rain events in Wilmington, NC, between September 15, 2005 to September 6, 2006. Each rain event was analyzed via 3D fluorescence, UV-Vis absorption spectroscopy, nuclear magnetic resona...
Photochemistry of brevetoxin, PbTx-2, produced by the dinoflagellate, Karenia brevis 2009 754 The predominant brevetoxin produced by Karenia Brevis, PbTx-2 was added to 0.2 µmfiltered Wrightsville Beach, North Carolina seawater (WBSW) and irradiated under simulated sunlight for six hours to determine its photolability. The average first ord...