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Acid Labile Surfactants Containing Ketal-Linkage in Micellar Electrokinetic Chromatography and Electrospray Ionization Mass Spectrometry
DownloadFall 2012
The combination of micellar electrokinetic chromatography (MEKC) with electrospray ionization mass spectrometry (ESI-MS) would yield a very powerful analytical technique. However, hyphenating both techniques is not easy. Sodium 4-[(2-methyl-2-undecyl-1,3-dioxolan-4-yl) methoxy]-1-propane...
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Cationic surfactant based coatings for protein separations and control of electroosmotic flow in capillary electrophoresis
DownloadFall 2014
Capillary electrophoresis (CE) is a fast and high efficiency separation technique based on the differential migration of charged species in an electric field. CE is useful for the separation of a wide range of analytes from small ions to large biomolecules. However, CE separations of proteins are...
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Graphitic carbon phases for chelation chromatography and electrochemically modulated preconcentration
DownloadSpring 2012
The first part of this thesis explores the synthetic method that converts carbon clad zirconia particles into chelation stationary phase. Oxine groups were attached onto the graphitic carbon surface by in situ generated diazonium ions in the aqueous solution. XPS, FTIR, SEM were utilized to...
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Synthesis of Lipopolysaccharide O-antigens from Klebsiella pneumoniae Serotype O2a as Molecular Probes for Biosynthetic Studies
DownloadFall 2018
Many Gram-negative bacteria are pathogenic organisms that can cause disease and death. As antibiotic resistance and nosocomial disease occurrences both increase, these infections are becoming more problematic. These issues can be partially attributed to lipopolysaccharide (LPS), which is a major...
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Theoretical understanding and method development for high performance liquid chromatography-mass spectrometry for environmental analysis
DownloadFall 2021
Method development is a fundamental key step for effective and efficient analytical separations and analyses. Of particular importance is method development for high performance liquid chromatography-mass spectrometry (HPLC-MS). Specifically, environmental analysis applications require dedicated...