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Filtering by: Creator Snyder, John C. (John Chester) Remove constraint Creator: Snyder, John C. (John Chester) Committee Member Westall, John Remove constraint Committee Member: Westall, John

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  • In situ transformation of toluene and xylene to benzylsuccinic acid analogs in contaminated groundwater

    Creator:
    Reusser, Dominik E.
    Abstract:
    The rate of removal of benzene, toluene, ethylbenzene and the xylene isomers (BTEX) from contaminated groundwater is needed to design remediation processes. Benzylsuccinic acid (BSA) and methyl-benzylsuccinic acid (methyl BSA) are unambiguous metabolites of anaerobic BTEX biodegradation. An analytical method for quantitative determination of BSA in groundwater samples was developed....
    Resource Type:
    Masters Thesis
    Full Text:
    achieve my goals in a short time. I would also thank my other committee members John Baham, Mike Schuyler

  • 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:
    and discussed. 1.4 References (1) Oerke, E. C. Crop losses to pests. Journal of Agricultural

  • 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:
    commitment shown by all of the members of my graduate committee: Dr. John Westall, Dr. Vince Remcho, and Dr

  • Galvanostatic control of ion selective electrodes with the solvent polymeric membrane

    Creator:
    Perera, Hasini R.
    Abstract:
    Detection technique that proposed utilizing electrochemically controlled, reversible ion extraction into polymeric membrane in an alternating galvanostatic/ potentiostatic mode was introduced. This method is studied in detail to comprehend the advantages of the novel sensor (pulstrode) compared to the potentiometric ion selective electrode (ISE), studies included possible applications and limitations....
    Resource Type:
    Dissertation
    Full Text:
    helped to improve the quality of this work. A sincere thank you is also extended to Dr. John Westall

  • 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:
    also thank Staci Simonich, his fellow lab mates, and his committee members (Bernd Simoneit, John