Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 437 for “"Chemistry, Analytical."”.
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Determination of optimal conditions and kinetic rate parameters in continuous flow systems with dynamic inputs
… and new technologies could revolutionize a chemistry laboratory. Flow chemistry is a technique that contrast with traditional batch chemistry in one aspect as a method that facilitates process automation and in small scales, delivers process improvements such as high heat and mass transfer …
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The Rich Chemistry of Cyclotriveratrylene (CTV) And CT-Inspired Reactions: Anthracenes with Organic Light-Emitting Diode (OLED) Applications and the Discovery of Cascade Reactions
… scaffold with applications in host-guest chemistry, analytical detection, drug delivery and liquid crystals. We have discovered that CTV rearranges to a highly functionalized anthracene derivative that is ideal for the synthesis of 9,10-disubstituted anthracene derivatives that are useful …
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Striatal Dopamine Dynamics Upon Manganese Accumulation
… <p>Advisor: Dr. Tiffany Mathews</p> <p>Major: Chemistry (Analytical)</p> <p>Degree: Doctor of Philosophy</p> <p>Although manganese (Mn) is fundamental for many biological processes, exposure to excess amounts leads to a neurological disorder termed manganism. Due to its symptomatic similarity …
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Surface analysis of self-assembled monolayers by mass spectrometry.
Surface analysis of self-assembled monolayers by mass spectrometry.
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Metabolism and disposition of active compounds of botanical dietary supplements.
Metabolism and disposition of active compounds of botanical dietary supplements.
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ANALYTICAL STUDIES IN VACUUM-ULTRAVIOLET (VUV) SPECTROPHOTOMETRY.
ANALYTICAL STUDIES IN VACUUM-ULTRAVIOLET (VUV) SPECTROPHOTOMETRY.
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An experimental study of molecular ion-surface interactions at organic layers.
An experimental study of molecular ion-surface interactions at organic layers.
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EVALUATION OF THE OXIDATIVE METABOLITES OF ARACHIDONIC ACID AND THEIR IMPLICATION IN THE PROGRESSION OF INFLAMMATORY DISEASES: HYPERTENSION AND RHEUMATOID ARTHRITIS
… diseases. To confirm this hypothesis, analytical methods including HPLC-UV and LC-MS were developed. The developed and validated HPLC method was applied to study the effect of acute exercise on prostanoids in hypertensive African American subjects. It was our theory that urinary 6-keto …
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Planar integrated optical waveguide chemical sensors and novel transducer layer materials
… these devices, through the ability to select an analytical wavelength of light particular to only a specific interaction, is also a very attractive feature. The implementation of sol-gel materials processing in the sensor fabrication proves beneficial to the device performance in many ways. …
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Visualizing and Characterizing Herbicide Activity in Plant Leaves
However, a greater diversity of herbicide physicochemical properties and in vitro potencies would expand the usefulness of this model.
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A Real -Time Core Extraction System for Soil Nitrates
Many methods exist to predict nitrates, but few have been applied in the field because a real-time extraction system is not available. For this reason, an intact core extraction procedure was tested that might be used in the field for the prediction of soil nitrates. This system used an intact core …
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FTIR Difference Spectroscopy Studies on Membrane Proteins
Fourier Transform Infrared Spectrsocopy (FTIR) is a powerful technique that is well suited to the investigation of protonation/deprotonation reactions of individual side chains within proteins, as well as any changes that might occur in the strength of H-bonds any change in the overall protein …
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Development and Application of Next Generation Mass Spectrometry for Protein Analysis at High-Resolution
And finally, a high-resolution MS/MS platform was developed to analyze large peptides at >>50,000 resolving power along with a software suite for interpreting resolved isotopic distributions and handling all known protein modifications on a high throughput basis. Called Middle Down Proteomics, this …
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Biofunctionalization of Submicrometer Pores and Mass Limited Sample Manipulations in Three-Dimensional Hybrid Microfluidic/nanofluidic Devices
Specific features of the unit operation systems pursued in this research are molecular recognition, multidimensional separation, online sample preconcentration, as well as analyte sorting and concentration which uses the nanofluidic components interconnecting the spatially separated microfluidic …
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Investigation of Electrode Processes and Double Layer Structure Using Visible/infrared Sum Frequency Generation
The dependence of single crystal Ag azimuthal rotation on resonant SFG signal line shapes is examined using broad band multiplex SFG. Detailed fitting analysis of acquired spectra is used to extract data as a function of azimuthal rotation angle. Magnitude of non-resonant background, relative phase …
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Copper Surface Chemistry Relevant to Chemical Mechanical Planarization (Cmp)
A third project investigated the effect of structure of corrosion inhibitors benzotriazole and 1,2,4-triazole (TAZ) on copper removal rate during CMP. Removal rates were higher for solutions containing TAZ than solutions containing BTA. The corrosion inhibitor films were characterized using AFM, …
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Enhancement of Platinum Cathode Catalysis by Addition of Transition Metals
In addition to overcoming the slow kinetics of the ORR, another critical issue to low temperature fuel cells is the gradual loss of performance due to the degradation of the cathode catalyst under the harsh operating conditions in fuel cells. In the second part of my study, the performance, …
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Fabrication, Metrology, and Transport Characteristics of Single Polymeric Nanopores in Three-Dimensional Hybrid Microfluidic/nanofluidic Devices
… the behavior of these devices creates new analytical challenges due to the inherently small volumes, short length scales, small numbers of analyte molecules, and new physical phenomena involved. To this end, robust and reproducible methods were developed to fabricate hybrid …
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Nuclear Magnetic Resonance Under Extreme Conditions: High-Pressure NMR Probe Development, and NMR Applications to the Dynamics of Confined Liquids
Dynamic NMR studies at ambient pressure were also perfonned on the polar fluids ethanol, 2,2,2-trifluoroethanol, propionic acid, and pentafluoropropionic acid confined to porous silica glasses with well-defined pore sizes. The $\sp{13}$C NMR spin-lattice relaxation times were measured and analyzed …
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Investigation of Non-Linear Chromatographic Retention Behavior for Two Homologous Series of Bis Analytes
Curved plots of retention factor vs. number of methylenes have been obtained for members of two homologous series of diamides. With alcohol modified mobile phases, plots of normalized HPLC retention factor vs. number of methylenes show maxima for retention for members of the homologous series of …
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