Browsing Department of Chemistry and Biochemistry by Author "Armstrong, Daniel W."
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ADVANCES IN LIQUID CHROMATOGRAPHY AND LIQUID CHROMATOGRAPHY MASS SPECTROMETRY FOR THE ANALYSIS OF BIOLOGICALLY IMPORTANT PHARMACEUTICALS, GLYCOSAMINOGLYCANS AND AMINO ACIDS
Wang, Yadi; 0000-0002-2659-9192 (2019-05-14)The use of high-performance liquid chromatography (HPLC) and liquid chromatography-mass spectrometry (LC-MS) is now commonplace among pharmaceutical laboratories. They are major analytical tools in the drug discovery ... -
Advances in Separation Methodologies: Fatty Acid, Fatty Amine, Water, and Ethanol Determination by Ionic Liquid Gas Chromatography and D-Amino Acid Evaluation in Mammalian Brain by Liquid Chromatography
Weatherly, Choyce Asher (2016-08-15)This dissertation focuses on two chromatographic techniques, gas chromatography (GC) and high performance liquid chromatography (HPLC). The goal of the GC work is to describe advances in separation methodologies focusing ... -
Anion Detection In The Positive Ion Mode Electrospray Ionization Mass Spectrometry By Use Of Cationic Ion Pairing Agents: Behavior And Applications
Dodbiba, Edra (Chemistry & Biochemistry, 2013-07-22)Anion detection and quantitation has long been of great interest to many scientific areas of research in academic and industrial settings. Their importance extends to areas such as water and environmental analysis, biological ... -
Capillary Electrophoresis Separation Of Neutral Organic Compounds, Pharmaceutical Drugs, Enantiomers And Anions
Feng, Qing (Chemistry & Biochemistry, 2012-04-11)The focus of this thesis is on using capillary electrophoresis (CE) with on-column UV detection in achiral and chiral separations. Chapter 1 provides a brief introduction to the principle, mechanism, meaning and application ... -
COPPER-BASED TERNARY OXIDE SEMICONDUCTORS FOR SOLAR ENERGY CONVERSION AND ENVIRONMENTAL REMEDIATION
Hossain, Mohammad Kabir; 0000-0002-2262-6181 (2019-09-04)Photoelectrochemical (PEC) water splitting using inorganic semiconductors is a promising approach to convert sunlight into sustainable fuels. However, many scientific and engineering challenges need to be overcome before ... -
Designing thermally stable ionic liquid stationary phases for gas chromatography and examining their structure-property relationships
Patil, Rahul A.; 0000-0002-0328-5369 (2018-11-30)Ionic liquids are popular in diverse scientific applications because of their unique physicochemical properties. The physicochemical properties of ionic liquids can be “tuned” by the modification of their structural moieties. ... -
DETERMINATION OF TOTAL AND D-AMINO ACID CONTENT IN MICE BRAIN TISSUE BY ACHIRAL-CHIRAL HEART-CUTTING TWO-DIMENSIONAL LIQUID CHROMATOGRAPHY: DIAGNOSTIC AND CLINICAL RELEVANCE AND A COMPARISON BETWEEN NON-PERFUSED AND PERFUSED TISSUE
Parpia, Curran; 0000-0002-1225-9787 (2015-11-24)A heart-cutting two dimensional liquid chromatographic method for the quantification of free amino acid enantiomers from mouse brain tissue is demonstrated. Evidence to support the occurrence of D-amino acids in significant ... -
DEVELOPMENT OF HIGHLY POLAR STRUCTURALLY-TUNED IONIC LIQUIDS WITH UNIQUE SELECTIVITY FOR GAS CHROMATOGRAPHY
Talebi, Mohsen; 0000-0002-1951-8163 (2018-11-30)Ionic Liquids (ILs) are state-of-the-art fluids that have found broad application in separation science. Owing to their unique physicochemical properties such as low vapor pressure, high thermal stability, and high viscosity, ... -
Development Of New Chiral Selectors For Liquid Chromatography And Their Performance Relative To Established Chiral Stationary Phases (CSPS)
Sun, Ping (Chemistry & Biochemistry, 2010-03-03)HPLC with chiral stationary phases (CSPs) has proven to be the most widely applicable and versatile technique for enantiomeric separations. This dissertation discusses new research in three important areas of enantiomeric ... -
Development Of New Stationary Phases And Their Applications In High Performance Liquid Chromatography
Qiu, Haixiao (Chemistry & Biochemistry, 2013-10-22)High performance liquid chromatography (HPLC) has proven to be the most widely applicable and versatile technique in separation science. Hydrophilic interaction liquid chromatography (HILIC) has attracted considerable ... -
Development Of Paired Ion Electrospray Ionization Mass Spectrometry For Ultrasensitive Detection Of Anions
Xu, Chengdong (Chemistry & Biochemistry, 2014-09-17)Mass spectrometry (MS) has emerged as an essential analytical technique over the last several decades. It is a widely applicable and powerful tool for determination and identification of different types of molecules. ... -
DEVELOPMENT OF ULTRAHIGH PERFORMANCE CHIRAL PHASES FOR SEPARATIONS APPROACHING THE SPEED OF SENSORS
Patel, Darshan C.; 0000-0002-7198-1163 (2017-08-24)Chromatography using chiral stationary phases is the most effective and popular technique for qualitative and quantitative analysis of enantiomers in the pharmaceutical, agricultural, and food industry, among many others. ... -
Development, Characterization And Application Of Chiral Stationary Phases
Khan, Muhammad Abdul MominCyclofructans are cyclic oligosaccharides consisting of a crown ether core with pendent fructofuranose units. These unique macrocycles were reported recently to be powerful chiral selectors. Native cyclofructans show little ... -
Development, Evaluation And Application Of Cyclofructans As Separation Agents
Padivitage, Nilusha L.T (Chemistry & Biochemistry, 2013-10-23)Hydrophilic interaction chromatography (HILIC) is now considered as a viable and established analytical tool for the separation of very polar and hydrophilic compounds, which are not sufficiently retained under Reversed ... -
DEVELOPMENT, EVALUATION, AND APPLICATION OF CHROMATOGRAPHIC RESOLUTION ENHANCEMENT STRATEGIES
Hellinghausen, Garrett; 0000-0002-5427-327X (2019-11-15)With the emergence of advanced separation technologies, like high-efficiency stationary phases bonded with superficially porous particles, or sub-2 μm fully porous particles, faster and more effective methodologies are ... -
Electrowetting Of Ionic Liquids And Development Of An Electrowetting Based Tunable RC Filter And Its Uses As An Analytical Detector
Nanayakkara, Yasith Sameera (Chemistry & Biochemistry, 2011-09-12)Wettability control of a liquid drop by an external electric field or "electrowet- ting" recently was the subject of special interest among researchers due to its util- ity for a variety of applications. Some of these ... -
Enantiomeric Chromatographic Separations And Ionic Liquids In Gas Chromatography
Huang, Ke (Chemistry & Biochemistry, 2010-07-19)Due to the different therapeutic values of optical isomers, the production of enantiomerically pure drugs is of growing demand in pharmaceutical, biotechnology, and agrochemical industries. Today, gas chromatography (GC) ... -
Enantiomeric Separations And New Chiral Stationary Phases
Wang, Chunlei (Chemistry & Biochemistry, 2010-03-03)Chirality is an important concern for biological activity because asymmetry dominates biological processes at a molecular level. After nearly thirty years of development, liquid chromatographic separations on chiral ... -
FLUORINATED ALCOHOL INDUCED SUPRAMOLECULAR BIPBASIC SYSTEMS IN PROTEOMICS AND LIPIDOMICS
Azizi, Mohammadmehdi (2021-05-28)The Fluoroalcohol induced Supramolecular Biphasic (FAiS-BP) systems are composed of a supramolecular phase which is a highly concentrated mixture of a fluoroalcohol and an amphiphile, and a separate aqueous-rich phase. The ... -
FUNDAMENTAL STUDIES ON ULTRAFAST CHIRAL AND ACHIRAL SEPARATIONS IN LIQUID CHROMATOGRAPHY AND SUB/SUPERCRITICAL FLUID CHROMATOGRAPHY
Barhate, Chandan L.; 0000-0002-7532-4128 (2017-05-03)This thesis is based on fundamental contributions in the field of ultrafast chiral and achiral separations using liquid and sub/supercritical fluid chromatography. The high efficiency sub-2 μm particles of narrow particle ...