Index Catalog // ScholarsArchive@OSU

Part I : development and application of an arsenic speciation technique using ion-exchange solid phase extraction coupled with GFAAS ; Part II : investigation of zinc amalgam as a reductant

Creator:: Bos, Mark C.
Abstract:: Two related techniques, based upon ion-exchange solid phase extraction, have been developed for the determination of arsenic speciation. The inorganic arsenic species arsenite (As(III)) and arsenate (As(V)) are separated by anion-exchange and detected with graphite furnace atomic absorption spectrophotometry (GFAAS) with a nickel matrix modifier. The first separation technique, which...
Resource Type:: Masters Thesis
Full Text:: range of most natural water samples (5 - 9), As(III) exists as a neutral species which is not retained

Synthetic studies of nonadrides

Creator:: Drapela, Nicholas Ernest
Abstract:: An asymmetric approach to the synthesis of byssochlamic acid (1) is described. Regioisomeric enzymatic differentiation is described in the selective hydrolysis of dimethyl ester 30 by porcine liver esterase. Chiral dimethyl ester 42 was prepared by desymmetrization of cyclopentene 34 using porcine liver esterase. A key intramolecular [2+2]cycloaddition-cycloreversion photometathesis of...
Resource Type:: Dissertation
Full Text:: racemic diester was converted to monoacid. No other products were isolated except a small amount (<5%) of

Modeling catalytic hydroeoxygenation in ultra-high vacuum : furan on clean and sulfided Mo(110)

Creator:: Tinseth, Glenn
Abstract:: The interactions of a model synthetic liquid fuel reactant (furan) with a model hydrodeoxygenation catalyst (clean and sulfided single crystal molybdenum) were investigated using the following UHV tools: Auger electron spectroscopy (AES), low energy electron diffraction (LEED), and temperature programed reaction spectroscopy (TPRS). In addition to furan, the reactions of...
Resource Type:: Dissertation
Full Text:: (110) 92 3-28 TPRS m/e=28, 29, and 30 peaks for runs carried out with no deuterium and with 5 x 10-7

Radical and related reactions of aromatic species

Creator:: Truska, Scott
Abstract:: A three part study involving aspects of radical properties of various aromatic species was accomplished. Experiments to ascertain the importance of geometric and electronic effects on the intramolecular transfer of a pi-complexed radical to a terminal double bond was performed. Several 4-aryl-1-butenes were reacted in competition with 1-undecene with a...
Resource Type:: Dissertation
Full Text:: noncomplexing solvents. Most of the relative rates varied little from unity and no dependence on solvent was

Purification of 2,5-dihydroxyacetanilide epoxidase and mechanism of hydroquinone epoxidases

Creator:: Kirchmeier, Marc J.
Abstract:: 2,5-dihydroxyacetanilide epoxidase from Streptomyces LL-C10037 (DHAE I) catalyzes the epoxidation of hydroquinone 4, to form epoxyquinone 7. DHAE I has been purified to homogeneity, with an overall purification factor greater than 23,000. N-terminal and internal amino acid sequences have been obtained from the purified enzyme so that the epoxidase gene...
Resource Type:: Dissertation
Full Text:: DHAE I requires only molecular oxygen and no added cofactors. The detailed chemical mechanism has been

Fusion enhancement with neutron-rich radioactive beams

Creator:: Zyromski, Kristiana Elizabeth
Abstract:: Fusion reactions with radioactive neutron-rich projectiles have been the subject of much recent theoretical and experimental interest. Predictions of enhancement of the cross section due to the use of a neutron-rich projectile may have implications for synthesis of heavy nuclei. In this work, the fusion-fission excitation functions were measured for...
Resource Type:: Dissertation
Full Text:: , respectively. No evidence of any additional mechanism beyond a simple shift in the Coulomb barrier was

Analytical methods for the study of migration of chloride ions in reinforced concrete under cathodic protection

Creator:: Orlova, Nadejda V.
Abstract:: The migration of chloride ions in concrete with steel reinforcement under cathodic protection was investigated. Mortar blocks (15 cm x 15 cm x 17 cm) of various composition (water to cement ratio, chloride ion content) were cast with an iron mesh cathode embedded along one face and a thermally sprayed...
Resource Type:: Masters Thesis
Full Text:: conditions of the study, no significant migration of chloride ions could be detected over the one-year test

Chemical and statistical analyses of chondrules from the Mokoia (CV3) meteorite

Creator:: Schilk, Alan J.
Abstract:: Nearly 100 chondrules were extracted from -8.6g of the Mokoia (CV3) meteorite and have been analyzed by sequential instrumental neutron activation analysis (INAA). The resulting data were utilized in a comprehensive statistical characterization of these objects and, unlike similar investigations, virtually no loss of relevant data was incurred due to...
Resource Type:: Dissertation
Full Text:: statistical characterization of these objects and, unlike similar investigations, virtually no loss of

Development of methodology and instrumentation for determination of chloroform in water

Creator:: Yang, Ying, 1969-
Resource Type:: Dissertation
Full Text:: would like to thank Dr. James D. Ingle for giving me the opportunity to work in his research group, and

New alkali-metal and alkaline-earth metal borates : synthesis, crystal structures, and optical properties

Creator:: Tu, Jun-Ming
Resource Type:: Dissertation
Full Text:: , built from B205 groups, 9-coordinate Sr atoms, and 5-coordinate Mg atoms, has been identified. The new

ScholarsArchive@OSU

Part I : development and application of an arsenic speciation technique using ion-exchange solid phase extraction coupled with GFAAS ; Part II : investigation of zinc amalgam as a reductant

Synthetic studies of nonadrides

Modeling catalytic hydroeoxygenation in ultra-high vacuum : furan on clean and sulfided Mo(110)

Radical and related reactions of aromatic species

Purification of 2,5-dihydroxyacetanilide epoxidase and mechanism of hydroquinone epoxidases

Fusion enhancement with neutron-rich radioactive beams

Analytical methods for the study of migration of chloride ions in reinforced concrete under cathodic protection

Chemical and statistical analyses of chondrules from the Mokoia (CV3) meteorite

Development of methodology and instrumentation for determination of chloroform in water

New alkali-metal and alkaline-earth metal borates : synthesis, crystal structures, and optical properties

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