E-Dissertationen: Suche
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Von Rotaxanen als potenziellen Enzym-Mimetika zu massenspektrometrischen Untersuchungen dendritischer Verbindungen in der hochverdünnten Gasphase
(2008)
Im Rahmen dieser Arbeit konnte ein mehrfach-funktionalisiertes [2]Rotaxan synthetisiert werden, das sich möglicherweise als künstliches Enzym für die Polymerisationsreaktion von Aminosäurederivaten einsetzen lässt. Neben ...
Von Templat-gesteuerten metallorganischen Rotaxansynthesen und Darstellung molekularer Shuttle zu massenspektrometrischen Untersuchungen supramolekularer Systeme in der hochverdünnten Gasphase
(2007)
Im Rahmen dieser Arbeit sind Rotaxansynthesen mit modernen katalytischen metallorganischen Reaktionen entwickelt worden. Hierbei wurde die Kupfer-katalysierte Glaser-Kupplung erfolgreich mit einer Templatsynthese kombiniert, ...
Analysis of the Storage Stability of Grape and Apple Juices in Terms of Antioxidative Capacity and Their Polyphenols, Hydroxymethylfurfural and Ascorbic Acid Content
(2008)
The aim of this work is to determine the storage stability of commercial grape and apple juices. Two storage studies are performed to provide extensive knowledge about the changes of the selected juices under different ...
Synthesis of ganglioside and lysoganglioside lipoforms as internal standards for MS quantification
(2015-01-08)
The goal of this work was to establish methods for the synthesis of modified gangliosides that are suitable as internal standards for mass spectrometry. Quantification of gangliosides is usually achieved by staining after ...
Proteomic identification of posttranslational modifications: cAMP-induced changes of phosphorylation and investigation of novel approaches detecting posttranslational modifications at lysine and arginine residues
(2020-04-22)
Cyclic adenosine monophosphate (cAMP) is an important second messenger which can be generated in response to signals binding to stimulatory G-protein coupled receptors. Inside the cell, protein kinase A is a well-known ...
Mechanistic Investigation of a HAuCl4 catalyzed oxidative C-C coupling reaction and Synthesis of new supramolecular Silver(I) and Gold(I) NHC compounds: or handling of a Mass Spectrometric Challenge and catching Counterions on Supramolecular Playgrounds
(2021-04-22)
Reaction monitoring by electrospray (ESI) mass spectrometry is a valuable technique to investigate reaction mechanisms. It allows a glimpse into the reacting solution and the characterization of transient intermediates ......