Index Catalog // ScholarsArchive@OSU

Improvements in synthesis and response techniques of ion-selective sensors

Creator:: Pylypiuk, Nataliia
Abstract:: Two improvements to the established procedures for synthesis and response detection of ion-selective optical sensors (optodes) were introduced. The first improvement addresses the drawback of organic dye (optode-localized chromoionophore) photobleaching. This positively impacts fluorescence response and allows for (1) direct measurement of hydrogen ion activity upon binding with the dye,...
Resource Type:: Masters Thesis
Full Text:: Response Techniques of Ion-Selective Sensors. Abstract approved: Vincent T. Remcho Two

Employing capillary electrophoresis as a separation method for pharmaceutical analysis

Creator:: Lessard, Laura L.
Abstract:: Capillary electrophoresis as a technique has many applications in a broad range of fields including forensics, environmental analysis, and biological analysis and as a separation method for samples such as oligonucleotides, peptides, proteins, and pharmaceuticals. The research conducted herein is for the antibiotic pharmaceutical ciprofloxacin HCl and three impurities. Sample...
Resource Type:: Masters Thesis
Full Text:: Separation Method for Pharmaceutical Analyses Abstract approved: Vincent T. Remcho Capillary

Electrochemistry at a reticulated vitreous carbon flow electrode

Creator:: Fahey, Jefferson Vincent
Abstract:: The electrochemistry of cadmium at a Reticulated Vitreous Carbon (RVC) electrode has been studied to determine the suitability of RVC as a working electrode for the electrochemical preconcentration of cadmium in the corrosive environment of zirconium dissolved in hydrofluoric acid. The electrochemistry in this investigation deals with deposition of solid...
Resource Type:: Masters Thesis
Full Text:: electrode An Abstract of the Thesis of Jefferson Vincent Fahey for the degree of Master of Science in

Trace analysis of halogenated polycyclic aromatic hydrocarbons from an electronic waste recycling area and Guangzhou, China

Creator:: Gonzales, Leah R.
Abstract:: Halogenated Polycyclic Aromatic Hydrocarbons (X-PAHs) are ubiquitous contaminants that are thought to be generated by processes such as chemical industries and incomplete combustion, including waste incineration and electronic waste (e-waste) burning. X-PAHs are a concern for environmental and human health because they are toxic, mutagenic, and are expected to be...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Leah R. Gonzales for the degree of Master of Science in Chemistry

Low-Dose X-Ray Radiation Effects On the Proteomic Profiles of Hippocampus, Cortex, and Cerebellum of Contextual Fear Conditioning and Novel Object Recognition Trained Mice

Creator:: Koluda, Rony
Abstract:: Radiation exposure to the brain can occur from a variety of events, including space missions, nuclear accidents, and clinical treatments. The effects of high dose radiation are well studied, but those of lower dosage are more elusive. Decline of memory and cognition is observed in patients exposed to low dose...
Resource Type:: Masters Thesis
Full Text:: endeavors. I would like to thank the rest of my committee: Dr. Vincent Remcho, Dr. Aleksandra Sikora

Polyion sensors based on induced ion extraction

Creator:: Fordyce, Katherine
Abstract:: A novel method for detecting the peptidase activity of clinically relevant peptidases was investigated using solid-contact electrochemical polyion sensors under chronopotentiometric control. Complete instrumental control over ion-extraction was accomplished by incorporating a lipophilic electrolyte into the ion-selective membrane; the sensors had no intrinsic ion-exchange capabilities. The sensors were used to...
Resource Type:: Masters Thesis
Full Text:: ) where R is the ideal gas constant, T is the temperature, F is the Faraday constant, z is the charge of

Comparison between lichen, conifer needles, resin-based passive air sampling devices (PASDs), and snow to monitor semi-volatile organic compounds (SOCs) in the atmosphere

Creator:: Schrlau, Jill E.
Abstract:: The purpose of this research was to compare four different media that were used to monitor SOC atmospheric concentrations in remote ecosystems. The accumulation of semi-volatile organic compounds, including pesticides, polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs), was investigated in lichen, 2-year old conifer needles, resin-based passive air sampling...
Resource Type:: Masters Thesis
Full Text:: guidance and support of the past few years and the graduate committee, Dr. Vincent Remcho, Dr. Dixon

The cystine and methionine contents of alfalfa as influenced by sulfur fertilization

Creator:: Schubert, John Rockwell
Resource Type:: Masters Thesis
Full Text:: under the direction of Dr . J . R. Haag , Department of Agricultural Chemistry , Oregon State College

Synthesis of a model of the spiroketal portion of avermectin B

Creator:: Warrier, Ulhas S.
Abstract:: Avermectin Bia is a member of a class of medicinally important natural products known for its potent antiparasitic activity and interesting structural features. In this thesis, synthesis of a model for the spiroketal portion of the avermectins is presented. Oxidation of (S)-2-methylbutanol, followed by a stereoselective chromium mediated reaction with...
Resource Type:: Masters Thesis
Full Text:: Bla Abstract approved: Redacted for privacy r Dr. James D. White Avermectin Bia is a member of a

Mass spectrometric analysis of bovine neurofilament proteins NF-L, NF-M, and NF-H : peptide mapping, phosphorylation and alkylation site identification

Creator:: Mixon, April E.
Abstract:: Neurofilament proteins are intermediate filaments found in the neuronal cytoskeleton. Phosphorylation of these proteins is considered important for the assembly and stability of the filaments. Accurate molecular weights have been difficult to measure, largely because the high degree of phosphorylation results in M[subscript r]'S that are significantly greater than dictated...
Resource Type:: Masters Thesis
Full Text:: -amino of lysine HO R OH N H3C CH3 dihydroxypyrrolidine R OH -H20 H3C()CH3 NRH + rnne ii CH3

ScholarsArchive@OSU

Improvements in synthesis and response techniques of ion-selective sensors

Employing capillary electrophoresis as a separation method for pharmaceutical analysis

Electrochemistry at a reticulated vitreous carbon flow electrode

Trace analysis of halogenated polycyclic aromatic hydrocarbons from an electronic waste recycling area and Guangzhou, China

Low-Dose X-Ray Radiation Effects On the Proteomic Profiles of Hippocampus, Cortex, and Cerebellum of Contextual Fear Conditioning and Novel Object Recognition Trained Mice

Polyion sensors based on induced ion extraction

Comparison between lichen, conifer needles, resin-based passive air sampling devices (PASDs), and snow to monitor semi-volatile organic compounds (SOCs) in the atmosphere

The cystine and methionine contents of alfalfa as influenced by sulfur fertilization

Synthesis of a model of the spiroketal portion of avermectin B

Mass spectrometric analysis of bovine neurofilament proteins NF-L, NF-M, and NF-H : peptide mapping, phosphorylation and alkylation site identification

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