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The Concentration And Speciation Of Sugars In Natural Waters, Minoo Shakerin Sweet
The Concentration And Speciation Of Sugars In Natural Waters, Minoo Shakerin Sweet
Dissertations and Theses
Due to the importance of carbohydrates in biological systems, many efforts have been made to develop a quantitative method for analysis of carbohydrates in natural waters. The low concentrations of dissolved sugars in natural waters require a sensitive analytical method. In this study, gas chromatography of alditol acetate derivatives of sugars was investigated for quantitative and qualitative analysis of individual dissolved sugars in natural waters. The alditol acetate derivatives of sugars give only one derivative for each sugar, yielding qualitative and quantitative results.
The detection limit was 25 nM for each sugar. Because of this very low detection limit, only …
A Study On Gaseous Ebullitions Of De Gray Reservoir, Arkansas, David Pinkston
A Study On Gaseous Ebullitions Of De Gray Reservoir, Arkansas, David Pinkston
Honors Theses
This study was undertaken in order to determine the nature of and the factors that influence the gaseous ebullitions of De Gray Reservoir near Arkadelphia, Arkansas during a yearly cycle.
Two major types of gaseous ebullition are described in the literature. The first has to do with the production and ebullition of elemental oxygen from photosynthesis (Porcella et al., 1975). Hutchinson (1957) predicts that the formation of oxygen bubbles in this manner is limited to very shallow, well lighted, warm waters.
The second type of gaseous ebullition involves the anaerobic digestion of organic matter (Reeburgh, 1969). Anaerobic conditions exist in …