Index Catalog // ScholarsArchive@OSU

Analysis of semi-volatile organic contaminants and their accumulation in remote aquatic ecosystems of the western US

Creator:: Ackerman, Luke K.
Abstract:: Many pesticides, polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and polycyclic aromatic hydrocarbons are persistent, bio-accumulative, and toxic. These semi-volatile organic compounds (SOCs) can undergo atmospheric transport and deposition in cold, remote ecosystems. A better understanding of their accumulation in the fish of these ecosystems is important to better predict...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Staci L. Simonich Many pesticides, polychlorinated biphenyls (PCBs), polybrominated

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:: Semi-Volatile Organic Compounds (SOCs) in the Atmosphere Abstract approved: Staci L

Conversion of glucose to hydrogen gas by supercritical water in a microchannel reactor

Creator:: Goodwin, Aaron K.
Abstract:: Glucose was gasified in supercritical water within a microchannel reactor at 650°C 750°C, and 250 bar to yield H2 rich gas with a low concentration of CO. The feed glucose concentration was 0.1 M. Two microchannel reactor configurations were tested at fluid residence times ranging from 0.5 sec to...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Gregory L. Rorrer Glucose was gasified in supercritical water within a microchannel reactor

Design, characterization, and application of spectrometers for determination of low-level dissolved oxygen with small-volume sampling methodology

Creator:: Cakin, Defne
Abstract:: New analytical methods and instrumentation were developed for the determination of dissolved oxygen (DO) at low concentrations in water. The methods were based on monitoring the absorbance increase due to the oxidation of reduced indigo carmine (IC) by oxygen in the sample in different types of spectrometer cells. Spectrophotometer cells...
Resource Type:: Dissertation
Full Text:: members, Vincent Remcho, Staci Simonich, Michael Lerner, and Fredrick Prahl for their guidance and

Determination of fluorochemicals in waste-dominated aqueous systems

Creator:: Huset, Carin A.
Abstract:: While fluorochemicals have been detected all over the world and in wastewater treatment plants, the effect of wastewater effluent on the receiving waters has not been evaluated. In the first study, the mass flow of fluorochemicals emanating from wastewater treatment plants along the Glatt River in Switzerland was evaluated. The...
Resource Type:: Dissertation
Full Text:: , Vincent Remcho and Staci Simonich, for the support and guidance over the years. I would especially like

Development, validation and the application of a congener specific photodegradation model for PBDEs

Creator:: Zeng, Xia
Abstract:: The thermodynamic properties of 39 PBDEs have been calculated using Gaussian 03 on the B3LYP/6-31G(d)//B3LYP/6-31G(d) level. The PBDE congeners' enthalpies of formation increase with increasing number of bromines and show a strong dependence on the bromine substitution pattern. The effects of bromine substitution pattern have been quantitatively studied by GAM...
Resource Type:: Dissertation
Full Text:: approved: Staci L. Simonich Douglas F. Barofsky The thermodynamic properties of 39

Semi-volatile fluorinated organic compounds in Asian and Pacific Northwestern U.S. air masses

Creator:: Piekarz, Arkadiusz M.
Abstract:: Current studies suggest that perfluorinated organic compounds, such as fluorotelomer alcohols (FtOHs) in the troposphere, may be precursors of perfluorocarboxylic acids and perfluorosulfonates in remote regions. Fluorinated organic compounds were investigated in archived extracts collected from remote locations in Okinawa, Japan (HSO) and Mount Bachelor, Oregon (MBO) during the springs...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Staci Simonich Current studies suggest that perfluorinated organic compounds

Synthesis and characterization of novel stationary phases for small scale liquid chromatographic separations of proteins and nanoparticles

Creator:: Hutanu, Daniela
Abstract:: The emerging field of nanotechnology strictly requires the micro-scaling of the available separation technology and the design of novel devices for separations of molecules of interest. The separation of proteins and nanoparticles is challenging due to their relatively large size, non-specific adherence to surfaces and instability in many solvents. This...
Resource Type:: Dissertation
Full Text:: . Staci Simonich, members of my graduate committee, for their advice on the dissertation content

Tracking semi-volatile organic pollutants in remote lake systems

Creator:: Usenko, Sascha
Abstract:: SOCs volatility and persistence properties cause many SOCs to become ubiquitous in the environment as well as accumulate in areas with lower temperatures such as polar or orographic regions. Many anthropogenic SOCs pose a serious risk to human and ecosystem health because of their persistent, bioaccumulative, and toxic properties in...
Resource Type:: Dissertation
Full Text:: . Staci L. Simonich, representing Chemistry SOCs volatility and persistence properties cause many SOCs

Trans-Pacific and regional atmospheric transport of anthropogenic semivolatile organic compounds in the western U.S.

Creator:: Primbs, Toby
Abstract:: The atmospheric transport of anthropogenic semivolatile organic compounds (SOCs) from Asian sources to the Western U.S. was investigated. In addition, the SOC extraction method was optimized. Hansen solubility parameter plots were used to aid in the pressurized liquid extraction (PLE) solvent selection of air sampling media in order to minimize...
Resource Type:: Dissertation
Full Text:: Organic Compounds in the Western U.S. APPROVED : Staci L. Simonich The atmospheric

ScholarsArchive@OSU

Analysis of semi-volatile organic contaminants and their accumulation in remote aquatic ecosystems of the western US

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

Conversion of glucose to hydrogen gas by supercritical water in a microchannel reactor

Design, characterization, and application of spectrometers for determination of low-level dissolved oxygen with small-volume sampling methodology

Determination of fluorochemicals in waste-dominated aqueous systems

Development, validation and the application of a congener specific photodegradation model for PBDEs

Semi-volatile fluorinated organic compounds in Asian and Pacific Northwestern U.S. air masses

Synthesis and characterization of novel stationary phases for small scale liquid chromatographic separations of proteins and nanoparticles

Tracking semi-volatile organic pollutants in remote lake systems

Trans-Pacific and regional atmospheric transport of anthropogenic semivolatile organic compounds in the western U.S.

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