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 698 for “"UV-vis"”.
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New techniques and devices for UV-Vis absorption spectroelectrochemistry
… lleva por título “New Techniques and devices for UV-Vis Absorption Spectroelectrochemistry” ha sido realizada en el área de Química Analítica de la Universidad de Burgos y dirigida por los doctores Álvaro Colina Santamaría y Mª Aránzazu Heras Vidaurre. En este trabajo se han desarrollado nuevas …
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Espectroelectroquímica UV-VIS con electrodos serigrafiados: estudio y determinación de neurotransmisores
… que lleva por título “Espectroelectroquímica UV-Vis con electrodos serigrafiados. Estudio y determinación de neurotransmisores” desarrolla la construcción y validación de una nueva celda espectroelectroquímica con la que se ha conseguido demostrar la utilidad de la técnica en la determinación …
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Sol-gel coatings containing inorganic and organic compounds--studies using Rutherford backscattering spectrometry and UV-VIS spectroscopy
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1990.
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Investigating the binding mode of azide labelled derivatives of Hoechst 33258 by NMR, UV-Vis and IR spectroscopy
This thesis describes attempts to develop a method for studying the dynamics of dsDNA: small molecule ligand association and dissociation through 2D-IR spectroscopy. The strategy employed was to synthesise azide-bearing derivatives of the archetypal minor groove binding ligand, Hoechst 33258, with …
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Development of New Computational Approaches to Predict the UV-Vis Behavior of Charge Transfer Organic Dyes and Application to Novel Silole Containing Dyes
… theory (TD-DFT) predictions regarding the UV-Vis absorbance of organic dyes. This work also presents the study of three new dyes that incorporate a novel functionality into their structure using the new computational methods. The first improved method was to use orbital overlap to …
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ΔΙΕΡΕΥΝΗΣΗ ΤΗΣ ΔΙΠΛΩΣΗΣ ΤΟΥ ΠΕΠΤΙΔΙΚΟΥ ΣΚΕΛΕΤΟΥ. ΣΥΝΘΕΣΗ ΚΑΙ ΑΝΑΛΥΣΗ ΤΗΣ ΔΙΑΜΟΡΦΩΣΗΣ ΑΝΑΛΟΓΩΝ ΤΟΥ ΚΕΝΤΡΙΚΟΥ ΤΜΗΜΑΤΟΣ ΤΗΣ ΑΓΓΕΙΟΤΕΝΣΙΝΗΣ ΙΙ. ΦΑΣΜΑΤΟΣΚΟΠΙΕΣ UV-VIS ΚΑΙ NMR
… BETWEEN TRP AND NVA(NIC+) HAVE BEENSUCCESSFULLY VISUALIZED BY APPLYING CHARGE TRANSFER MARKERS IN THE LRF MOLECULE (P-GLU-HIS-TRP-SER-TYR-GLY- LEU-ARG-PRO-GLY-NH2) AND ANALOGUES OF ITS CENTRALSEQUENCE, ACCORDING TO THE PROBABILITY OF B-TURN FORMATION. ON THE OTHER HAND,SIDE CHAIN-SIDE CHAIN …
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QUANTIFICATION OF ASPARTAME IN LOZENGES AND TABLETOP SWEETENERS VIA MULTIPLE PARAMETER MANIPULATION BY USING DISSOLUTION STUDIES WITH UV-VIS, ULTRA-HPLC, AND MATHEMATICAL DRUG MODELING
… determined. Aspartame was quantified by both a visible and UV method, and ultimately by ultra-HPLC. Dissolution profiles, kinetics, and figures of merit from the different assays are reported.</p>
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Analysis of Blue Fountain Pen Ink by UV-Vis Spectroscopy, ATR-FTIR Spectroscopy, and Thin Layer Chromatography Enhanced with RGB Spot Evaluation to Construct a Database for Comparison and Identification.
… (TLC) enhanced with RGB spot evaluation, UV-Vis spectroscopy, and ATR-FTIR spectroscopy. All three methods were used to analyze 89 fountain pen ink samples. All three methods were able to discriminate between the majority of the ink samples. However, some samples were still similar and …
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Progettazione, sviluppo e trasferimento tecnologico: Un'esplorazione completa dei calorimetri a doppia lettura basati su SiPM per i futuri collisori circolari e la loro applicazione per il monitoraggio della qualità dell'acqua nello spettro UV-Vis.
… dell'Università di Catania. Il lavoro è diviso in due parti principali: la prima si concentra sullo sviluppo di un calorimetro a doppia lettura, compresi i contributi dell'autore alle collaborazioni INFN RD-FCC e HiDRa, e sui test estensivi di una matrice SiPM di Hamamatsu a varie …
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The Synthesis and Photophysical Properties of New Polymetallic Complexes Designed for Use in Photoinitiated Electron Collection
… and characterized using electrochemistry, UV-vis spectroscopy, and UV-vis spectroelectrochemistry. The bimetallic complexes were investigated as potential light-absorber / electron-donor complexes to be used in larger supramolecular devices for photoinitiated electron collection and …
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Development of a high-throughput phenotyping method for measuring sorghum carotenoids
… a high-throughput phenotyping (HTP) method using UV-VIS spectrophotometry can identify high carotenoid sorghum lines for selection during breeding. In this study, a simple and rapid method for carotenoid extraction and UV-VIS spectrophotometric detection in a 96-well plate format was developed and …
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Selective Laser-Induced Oxidation of Carbon Chain Molecules in Cryogenic Matrices
… of those carbon molecules which have known UV/VIS absorptions. For this purpose we trapped the molecules of carbon vapor in non-inert matrices(O2, Ar-O2). Upon matrix annealing, molecular growth took place leading to a mixture of linear carbon species up to C17. The output of an excimer-dye …
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Cyanide-bridged polynuclear complexes
… by X-ray single crystal determination, IR, UV-Vis and cyclic voltammograms, respectively. The three mixed valent dinuclear complexes display metal- metal charge transfer (MMCT) bands in the visible region. Some of MMCT properties in the complexes have been analyzed. The cyanide-bridged trans …
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Multi-Method Investigation of the Mechanism of Surfactant-Induced Chromatotropism of Metal-Chelometric Dye Complexes
… which certain surfactants change the ultraviolet-visible (UV-vis) spectroscopic properties of certain metal-dye complexes has been largely ignored in the chemical literature. In this manuscript a model is developed to describe this mechanism. Intramolecular forces among surfactant molecules and …
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Simulated solar light assisted photocatalytic degradation of organic matters
… of catalysts. The higher-end of ultraviolet (UV) spectrum required for catalyst activation is usually accompanied by high operation costs. From the viewpoint of solar energy utilization, the development of photocatalysis under ultraviolet-visible (UV-Vis) light is emerging as an important …
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Synthesis and solvatochromic investigation of 1,4-Di isocyanonaphthalene
… of the sample wasanalyzed by utilizing the UV-Vis and Fluorescent spectroscopy. During the UV-Vismeasurements various solvents with different concentrations were analyzed to determine themolar absorbance. From the UV-Vis measurements the excitation wavelengths and the extinctioncoefficients …
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Cisztein tartalmú peptidek Ni(II) komplexei
… komplexeinek vizsgálai. A pH potenciametria,UV-VIS- és CD spektroszkópiás vizsgálatai alapján vizsgáltuk a peptid-Ni rendszer szerkezetét.
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Spectral and Physicochemical Characteristics of nC60 in Aqueous Solutions
… transmission electron microscopy (TEM), and UV-Vis spectroscopy. nC₆₀ produced in the presence of carboxylate differs from that produced in water alone (aq/nC₆₀) with respect to surface charge, average particle size, interfacial properties, and UV-Vis spectroscopic characteristics. …
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Zweikernkomplexe multifunktioneller Pyrazolatliganden als bimetallische Analoga von N-Chelatkomplexen : Synthese, Koordinationschemie, Eigenschaften
… Bimetallkomplexe wurden mit Hilfe von IR-, UV/Vis/NIR-, NMR-spektroskopischen und elektrochemischen Methoden sowie der Röntgenstrukturanalyse aufgeklärt. Zweikernige Komplexe mit chelatfixierten Metallionen eignen sich insbesondere zur Untersuchung von ligandvermittelten Wechselwirkungen …
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