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The chemical nature of Douglas fir cork

Creator:: Hergert, Herbert Lawrence
Resource Type:: Masters Thesis
Full Text:: NATtJRE OF DOUGLAS FIR CORK HERBERT LAWRENCE HERGERT A THESIS submitted to OREGON STATE COLLEGE

Ion-pair high pressure liquid chromatography techniques for the determination of quaternary ammonium compounds

Creator:: Starbuck, Brian J.
Abstract:: Quaternary Ammonium Compounds, Qams, are an important class of chemicals which present interesting challenges to analysts. This thesis reports results of investigations on uses of ion-pairing techniques for separations and detection of Qams. Special apparatus for post-column solvent extraction of liquid chromatographic eluates was developed as part of this work....
Resource Type:: Masters Thesis
Full Text:: the determination of quaternary ammonium compounds AN ABSTRACT OF THE THESIS OF Brian J. Starbuck

Design and development of an intensified diode array system and its application to new fluorometric reaction rate methods of analysis

Creator:: Ryan, Mary Andrieu
Abstract:: Improvements in instrumentation for fluorometric kinetic measurements and the application of a new intensified diode array (IDA) rapid scanning system to low level transient fluorescence measurements are reported. This instrumentation is applied to a new fluorometric kinetic method for thiamine (TM). Modifications to the existing fluorometric reation rate instrument include...
Resource Type:: Dissertation
Full Text:: THESIS OF MARY ANDRIEU RYAN for the degree of DOCTOR OF PHILOSOPHY in CHEMISTRY presented on June 5

Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

Creator:: Mansergh, Ryan H.
Abstract:: Oxo-hydroxo Group 5 metal clusters are an untapped resource to study and advance aqueous solution processing of metal oxide thin films. The tetramethylammonium (TMA) hexatantalate salt (TMA6[H2Ta6O19]) yields dense Ta2O5 films (~95% of the bulk ß-Ta2O5 density) with atomically smooth surfaces (<4 Å root mean square surface roughness). This same...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Ryan H. Mansergh

Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

Creator:: Vancheeswaran, Sanjay
Abstract:: At Site-300, Lawrence Livermore National Laboratory (LLNL), CA, trichloroethene (TCE) is present along with tetraalkoxysilanes such as tetrabutoxysilane (TBOS) and tetrakis(2-ethylbutoxy) silane (TKEBS), as subsurface contaminants. Intrinsic transformation of TCE to cis-dichloroethene (c-DCE) was observed in the groundwater at locations co-contaminated with TBOS or TKEBS. Attenuation of TBOS and TKEBS...
Resource Type:: Masters Thesis
Full Text:: Transformation of TCE and c-DCE. Abstract approved: Abstract approved: At Site-300, Lawrence Livermore

Some recent developments in the theory of significant figures and their applications to chemical instrumentation

Creator:: Fields, Lawrence D.
Abstract:: Significant figures have been a nebulous area in the physical sciences. The results of a literature survey, and of a questionaire distributed among the Chemistry Department faculty at Oregon State University, revealed widely differing interpretations regarding the proper role of significant figures. The present study has a two-fold nature. First...
Resource Type:: Masters Thesis
Full Text:: figures and their applications to chemical instrumentation AN ABSTRACT OF THE THESIS OF Lawrence D

Integration methods for enzymatic analysis response curves which show maxima, minima or inflections

Creator:: Radke, Garold E.
Abstract:: Integration methods for enzymatic reactions were applied to transducer response vs. time curves which exhibit maxima, minima or inflections. The difference between the integral of the time dependent response and the initial response, often zero, is related to the initial enzyme activity or substrate concentration. Fluorescence response curves which exhibit...
Resource Type:: Masters Thesis
Full Text:: for Privacy Lawrence C. Thomas Integration methods for enzymatic reactions were applied to

Determination of chlorinated hydrocarbons by response factor calibration

Creator:: Ramus, Terry Lee
Resource Type:: Dissertation
Full Text:: approved: Lawrence C. Thomas A new method is developed and evaluated in this thesis research for

Mass-flow control system utilizing flow-feedback for gas chromatography

Creator:: Dodo, Gerald Haruo
Abstract:: A unique mass-flow control system for the carrier gas in gas chromatography is described and evaluated. Carrier gas flow is controlled by a flow sensor, feedback electronics, a flow-control valve and a microcomputer. The flow-rate is monitored by a mass-flow meter by this system and the flow is adjusted in...
Resource Type:: Masters Thesis
Full Text:: Chromatography Abstract approved: Redacted for Privacy Lawrence C. Thomas A unique mass-flow control system

Substitutional Effects on the Electromechanical Properties of Lead-free, Piezoelectric (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT)

Creator:: McQuade, Ryan R.
Abstract:: This work investigates the effect of cation substitution on the properties of the lead-free, solid solution (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT). Substitution into NBT-BT increases disorder and increases the relaxor ferroelectric properties. These relaxor ferroelectric materials show large piezoelectric strains that can be utilized in actuator applications. Ceramic samples were prepared using standard...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Ryan Richard McQuade for the degree of Doctor of Philosophy in

ScholarsArchive@OSU

The chemical nature of Douglas fir cork

Ion-pair high pressure liquid chromatography techniques for the determination of quaternary ammonium compounds

Design and development of an intensified diode array system and its application to new fluorometric reaction rate methods of analysis

Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

Some recent developments in the theory of significant figures and their applications to chemical instrumentation

Integration methods for enzymatic analysis response curves which show maxima, minima or inflections

Determination of chlorinated hydrocarbons by response factor calibration

Mass-flow control system utilizing flow-feedback for gas chromatography

Substitutional Effects on the Electromechanical Properties of Lead-free, Piezoelectric (Na₀.₅Bi₀.₅)TiO₃-BaTiO₃ (NBT-BT)

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