Isolation and physiochemical characterization of dissolved organic matter across limnic and oceanic systems

• Main Author: Driver, Shamus J.
• Other Authors: Zubkov, Tykhon
• Language: unknown
• Published: 2020
• Subjects: Water > Organic compound content > Suwannee River (Ga. and Fla.); Seawater > Organic compound content > Antarctica > Pony; Lake; Water > Sampling > Suwannee River (Ga. and Fla.); Water > Sampling > Antarctica > Pony; Pony Lake; Suwannee River; Antarc*; Antarctica
• Online Access: http://cardinalscholar.bsu.edu/handle/123456789/202275

Access to thesis permanently restricted to Ball State community only The included studies compare and contrast dissolved organic matter (DOM) from different limnic and oceanic systems in the United States, as well as a sample from Pony Lake, Antarctica. Twenty-seven samples of DOM were isolated via coupled reverse osmosis/ electrodialysis from both the Altamaha and Satilla rivers in Southeastern Georgia, United States. These samples, as well as the Pony Lake samples were analyzed via high-resolution mass spectrometry and compared to international standards from the International Humic Substance Society. Two prepublished works are also included in this dissertation. The first creates an acid-base titration methodology utilizing an autotitrator. The second utilizes this methodology and applies it to newly collected DOM samples from the Suwannee River, Georgia, USA. Department of Chemistry Acidic functional groups of Suwannee River natural organic matter, humic acids, and fulvic acids -- Acid-base chemistry of natural organic matter, hydrophobic acids, and transphilic acids from the Suwannee River, Georgia, as determined by direct potentiometric titration -- Isolation and characterization of Pony Lake dissolved organic matter -- High-level characterization of dissolved organic matter across a salinity gradient Thesis (Ph. D.)