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  • 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:
    as Glenn, Dave, Luke, Toby, JayLene, Shawn, Mike, Ron, Carrolyn, Janette, Kasia, Robert, Blaine

  • Biological oxidation of sorbitol

    Creator:
    Cummins, Joseph Thomas
    Abstract:
    The oxidation of sorbitol by soluble extracts of A. suboxydans proceeds by two pathways depending upon which pyridine nucleotide is present. In the presence of TPN, sorbose is formed. In the presence of DPN fructose is produced. Both products of the oxidation of sorbitol have been identified by paper chromatography,...
    Resource Type:
    Dissertation
    Full Text:
    acknowledge the many help- ful suggestions given me by Dr. Robert W. Newburgh which improved the quality of

  • The chemical nature of the extractives from the bark of red alder, alnus rubra, Bong

    Creator:
    Becker, Edward Samuel
    Abstract:
    The purpose of this investigation was to determine the nature of the extractives from red alder bark in an effort to discover the materials which cause the red stain in red alder wood. Samples of bark and wood were obtained and successively extracted with hexane, benzene, ether, ethanol, and hot...
    Resource Type:
    Masters Thesis

  • Gas-phase fragmentation chemistry of protonated peptide ions

    Creator:
    Bythell, Benjamin James
    Abstract:
    The fragmentation characteristics of protonated peptides have been investigated using tandem mass spectrometry (MS/MS) under various fragmentation regimes and detailed density functional theory (DFT) reaction pathway calculations. The DFT calculations predict novel salt-bridge stabilized transition structures as well as consecutive reactions occurring in proton-bound dimers for some of the ions...
    Resource Type:
    Dissertation
    Full Text:
    , v or w. Fragment ions with neither termini are the product of two backbone cleavages, one at each

  • Wide band gap semiconductors and insulators : synthesis, processing and characterization

    Creator:
    Hersh, Peter A.
    Abstract:
    The work presented here is focused on applying basic principles of solid-state chemistry to the study and development of new wide band-gap semiconductors and insulators for photovoltaic and electronic-device applications. Analysis of crystal structure, band structure, optical band gap, morphology and transport properties provides fundamental insight into materials performance as...
    Resource Type:
    Dissertation
    Full Text:
    , Paul Newhouse, Robert Kykyneshi, David Hong, Dr. Hai Chiang, Jack Spies and Richard Schafer. Ted

  • 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:
    Landers, and Dr. Kim Anderson and Dr. Robert Collier. I would also like to thank Dr. Linda Geiser for

  • Quantitative determination of emerging contaminants, solvent stabilizers and fullerene nanomaterials, in biological and environmental systems

    Creator:
    Isaacson, Carl W.
    Abstract:
    To determine the impact of emerging environmental contaminants on human and environmental health, quantitative analytical methods are required. Analysis of emerging contaminants is hampered by their widely varying physical-chemical properties. Therefore quantitative analytical methods must be developed to determine the behavior of emerging contaminants in environmental systems. A quantitative analytical...
    Resource Type:
    Dissertation
    Full Text:
    THE DISSERTATION OF Carl W. Isaacson for the degree of Doctor of Philosophy in Chemistry presented on

  • High quantum-yield phosphors via quantum splitting and upconversion

    Creator:
    Jeong, Joayoung
    Abstract:
    The Gd3+ ion has been used to induce quantum splitting in luminescent materials by using cross-relaxation energy transfer (CRET). In Nd:LiGdF4, quantum splitting results from a two-step CRET between Gd3+ and Nd3+, first involving a transition 6G→6I on Gd3+ and an excitation within the 4f3 configuration of Nd3+ followed by...
    Resource Type:
    Dissertation
    Full Text:
    , Michael M. Lerner, William W. Warren, Jr., and John E. Baham for their encouragement in helping me to

  • Luminescent sulfides and solution-deposited oxide thin films

    Creator:
    Anderson, Jeremy T.
    Abstract:
    Solid state luminescent sulfides are prepared as powders in order to elucidate the relationship between structure and light emission. While the sulfides studied in this dissertation are known phosphors, materials are investigated in a variety of new ways. Elementary properties and structures of MgS are reviewed, and preparation of MgS...
    Resource Type:
    Dissertation
    Full Text:
    , particularly Robert Kykyneshi. High resolution structures were probed by Dr. Johnson’s group (Ducks) to

  • Aqueous chemistries for oxide electronics

    Creator:
    Meyers, Stephen T.
    Abstract:
    The variegated aqueous chemistries of metal cations are applied to the design and synthesis of non-toxic solution precursors suitable for additive printing of large-area oxide electronics. Polycondensation behaviors of aqueous Al+3 and PO4 +3 are manipulated in the deposition of atomically smooth amorphous aluminum oxide phosphate (AlPO) dielectric films. AlPO...
    Resource Type:
    Dissertation
    Full Text:
    well as highly intelligent and motivated graduate students Dr. Robert Kykyneshi, and Andriy