Browsing Dissertations & Theses by Author "Armstrong, Daniel W"
Now showing items 1-6 of 6
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An Investigation of Peak Shape Models in Chiral Separations
Burk, Ryan Jacob; 0009-0003-2980-3181 (2023-05-04)The use of superficially porous particles in chromatography has led to significant improvements in separation efficiency. However, peak asymmetry in enantiomeric separations causes performance comparisons across particle ... -
ANALYSIS OF ISOTOPIC ISOMERS BY GAS CHROMATOGRAPHY AND MOLECULAR ROTATIONAL RESONANCE SPECTROSCOPY AND ENANTIOSELECTIVE METHOD DEVELOPMENT BY LIQUID CHROMATOGRAPHY
Aslani, Saba (2023-05-22)**Please note that the full text is embargoed until 05/14/2024** ABSTRACT: This dissertation focuses on developing improved methods and a better understanding of gas and liquid chromatographic separation of isotopic isomers ... -
Chemically Modified Cyclofructans for Sub/supercritical Fluid Chromatography and Hydrophilic Interaction Liquid Chromatography
Khaki Firooz, Sepideh; 0000-0001-5000-5385 (2022-08-16)Given the importance of supercritical fluid chromatography, several works focused on the application use different SFC stationary phases. In this work, two new derivatized cyclofructan bonded phases with superficially ... -
COMBINING CHIRAL CHROMATOGRAPHIC STATIONARY PHASES AND N-DERIVATIZATION STRATEGIES FOR THE QUALITATIVE AND QUANTITATIVE ANALYSIS OF D-AMINO ACIDS, D-AMINO ACID CONTAINING PEPTIDES AND D-AMINO ACID RELATED SECONDARY METABOLITES USING LIQUID CHROMATOGRAPHY
Sung, Sam; 0009-0009-0842-0898 (2023-05-12)Amino acids are essential building blocks in all life on Earth. It was first mistakenly believed that only L-amino acids were of biological relevance in higher organisms, and D-amino acids were laboratory artifacts or ... -
DEVELOPMENT OF HPLC STATIONARY PHASES WITH UNIQUE SELECTIVITIES AND INTRODUCTION OF MOLECULAR ROTATIONAL RESONANCE SPECTROSCOPY IN GAS CHROMATOGRAPHY
Thakur, Nimisha; 0000-0002-6380-6613 (2020-11-23)This thesis contributes to advancing liquid and gas chromatography by introducing new stationary phases for HPLC and a new hyphenated GC technique. In the first section, new pH stable stationary phases based on geopolymers ... -
SENSTIVE ENANTIOMERIC ANALYSIS OF N-ACYL HOMOSERINE LACTONES IN BACTERIAL MATRICES
Portillo, Abiud E; 0000-0002-6203-4244 (2023-01-03)**Please note that the full text is embargoed until 12/13/2024** ABSTRACT: Communication between unicellular organism has long been studied with many facets yet to be discovered. A specific type of communication in ...