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Full-Text Articles in Physical Sciences and Mathematics
Investigation Of Natural Perchlorate Levels In Antarctic Snow In Relation To The Ozone Hole, Thomas Crawford, Alexandria Kub, Han Vid Cho
Investigation Of Natural Perchlorate Levels In Antarctic Snow In Relation To The Ozone Hole, Thomas Crawford, Alexandria Kub, Han Vid Cho
The Journal of Undergraduate Research
Snow samples collected from the West Antarctic Ice Sheet Divide in January 2013 were analyzed for perchlorate concentrations to determine a possible seasonal variation. These samples were dated for the years 2007 through 2012 using annual variations in sulfate concentration as determined by an ion chromatography (IC) method. Perchlorate concentrations in the samples were measured with an IC instrument paired with tandem mass spectrometry detection. The concentration data show that perchlorate reached an annual maximum concentration in the austral autumn seasons, assuming that snowfall was relatively constant throughout the course of each year. Comparison with published total column ozone density …
Optimization And Structural Characterization Of Dimethyl Trisulfide (Dmts) Oxidation Product, Laura Dirks, Brian Peterson, Benjamin Walter
Optimization And Structural Characterization Of Dimethyl Trisulfide (Dmts) Oxidation Product, Laura Dirks, Brian Peterson, Benjamin Walter
The Journal of Undergraduate Research
Cyanide poisoning is a public concern, and there are many shortfalls in current cyanide treatments. Dimethyl trisulfide (DMTS) is a cyanide antidote candidate that overcomes these shortfalls. Currently, there are limited published reports related to the analysis of DMTS. Therefore, an analytical method to detect and analyze DMTS from a biological matrix is vital for it to become available as a therapeutic agent against cyanide poisoning. The motivation of this project is to develop an HPLC-MS/MS method for analysis of DMTS and its degradation products; however, DMTS is difficult to ionize, a requirement for MS analysis, due to its nonpolar …
The Journal Of Undergraduate Research: Volume 13
The Journal Of Undergraduate Research: Volume 13
The Journal of Undergraduate Research
This is the complete issue of the South Dakota State University Journal of Undergraduate Research, Volume 13.