Analytical applications of ionic liquids and determination of cell viability using capillary electrophoresis coupled with laser-induced fluorescence detection

dc.contributor.advisor Daniel W. Armstrong
dc.contributor.author He, Lingfeng
dc.contributor.department Chemistry
dc.date 2018-08-24T21:47:07.000
dc.date.accessioned 2020-07-02T05:46:57Z
dc.date.available 2020-07-02T05:46:57Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2002
dc.date.issued 2002-01-01
dc.description.abstract <p>Newly developed ionic liquids that are air and moisture stable have been subject to an increasing number of scientific investigations. Their recent applications include novel solvent systems and catalysts for organic synthesis, versatile electrolytes for electrochemical studies, and liquid-liquid extraction solvents. The potential usage of ionic liquids could be vast. The purpose of the first part of this dissertation is to address the novel applications of ionic liquids in the field of analytical chemistry. In this part, the author's research can be divided into two directions: (a) examining the chromatographic performance of ionic liquids as gas chromatography (GC) stationary phases or solvents for GC stationary phases; (b) synthesizing new ionic liquids and testing their properties as matrices for matrix-assisted laser desorption/ionization (MALDI) mass spectrometry.;In addition to multiple applications of ionic liquids, we also became interested in developing an effective instrumental method to assess the viability of microorganisms and mammalian cells. Since existing techniques, such as plate count methods, flow cytometry, etc., are either laborious or too expensive, highly efficient and more affordable methods are needed. Therefore, the second part of this dissertation is focused on the feasibility of using capillary electrophoresis (CE), in combination with fluorescent labeling technique, to determine cell viability. The author first adapted the recently developed highly efficient microbial CE method and viable fluorescence staining method to determine the viability of bacteria and yeast, and then carried out the potency study of animal sperm using a similar CE approach.;This dissertation is presented as two independent parts. Each part begins with a general introduction and literature review of recent progress in the specific research area. The following chapters are arranged in such a way that the related published papers or manuscripts are presented as separate chapters. All these chapters are presented in publication format. References for each chapter are independent and appear at the end of the chapter. The last chapter is general conclusions covering both parts of this dissertation.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/516/
dc.identifier.articleid 1515
dc.identifier.contextkey 6074963
dc.identifier.doi https://doi.org/10.31274/rtd-180813-8779
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/516
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/77874
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/516/r_3073451.pdf|||Sat Jan 15 00:44:54 UTC 2022
dc.subject.disciplines Analytical Chemistry
dc.subject.disciplines Microbiology
dc.subject.keywords Chemistry
dc.subject.keywords Analytical chemistry
dc.title Analytical applications of ionic liquids and determination of cell viability using capillary electrophoresis coupled with laser-induced fluorescence detection
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication 42864f6e-7a3d-4be3-8b5a-0ae3c3830a11
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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