Sökning: "Mass Spectrometry"

Visar resultat 11 - 15 av 1134 avhandlingar innehållade orden Mass Spectrometry.

1. 11. Mass spectrometry of proteins

   Författare :Ivan Kamensky; Uppsala universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : .... LÄS MER

3. 12. Chiral Recognition by Means of Mass Spectrometry

   Författare :Oleksii Rebrov; Mats Larsson; Per Johnsson; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chirality; Mass spectrometry; Chiral recognition; Gas phase; kemisk fysik; Chemical Physics;

   Sammanfattning : This thesis is based on experimental studies of chiral ions in gas-phase. Electrospray ion source platform (Stockholm University) and commercially available Quadrupole Time-of-Flight mass spectrometer have been used in our studies. LÄS MER

4. 13. Mass Spectrometry of Biologically Active Small Molecules : Focusing on polyphenols, alkaloids and amino acids

   Författare :Zdeněk Spáčil; Leopold L. Ilag; Frantisek Turecek; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LC-MS; LDI; Mass spectrometry; HPLC; UHPLC; polyphenols; phenolic acids; BMAA; Separation methods; Separationsmetoder; Analytical chemistry; Analytisk kemi; Analytical Chemistry; analytisk kemi;

   Sammanfattning : The foci of this dissertation are on advanced liquid chromatography (LC) separation and mass spectrometry (MS) techniques for the analysis of small bioactive molecules. In addition to discussing general aspects of such techniques the results from analyses of polyphenols (PPs), alkaloids and amino acids published in five appended studies are presented and discussed. LÄS MER

5. 14. Secondary and Higher Order Structural Characterization of Peptides and Proteins by Mass Spectrometry

   Författare :Christopher Adams; Roman Zubarev; Göran Possnert; Carlito Lebrilla; Uppsala universitet; []
   Nyckelord :Engineering physics; Protein Structure; Mass Spectrometry; Electron Capture Dissociation; Tandem Mass Spectrometry; Teknisk fysik;

   Sammanfattning : The work in this thesis has demonstrated the advantages and limitations of using MS based technologies in protein and peptide structural studies. Tandem MS, specifically electron capture dissociation (ECD) have shown the ability to provide structural insights in molecules containing the slightest of all modifications (D-AA substitution). LÄS MER

7. 15. Bioanalysis using capillary electrophoresis and mass spectrometry : Applied on proteins, protein nanofibrils and polyvinyl alcohol microbubbles

   Författare :Leila Josefsson; Åsa Emmer; Ulrika Nilsson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; : amyloid; capillary electrophoresis; contrast agents; detection; human blood plasma; ionic liquids; mass spectrometry; microbubbles; polyvinyl alcohol microbubbles; protein nanofibrils; proteins; Kemi; Chemistry;

   Sammanfattning : The sequencing of the genome of various species, including the human species, have led to increased understanding about how a protein structure is generated, and how specific structures are related to the proteins’ functionality. In paper I and II of this thesis, the folding of proteins in vitro to form hierarchical nanostructures, which in vivo often have a pathological effect, have been studied. LÄS MER