Sökning: "electrospray ionization ESI"

Visar resultat 21 - 25 av 47 avhandlingar innehållade orden electrospray ionization ESI.

  1. 21. Structural studies towards the understanding of biosynthesis of the lipopolysaccharide of Haemophilus influenzae

    Författare :Anna Risberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Haemophilus influenzae; structural investigation; lipopolysaccharide LPS ; NMR and electrospray ionization mass spectrometry ESI-MS ;

    Sammanfattning : The thesis Structural studies towards the understanding of biosynthesis of the lipopolysaccharide of Haemophilus influenzae involves structural investigation of LPS of four different H. influenzae strains, RM.118-28, RM.118, RM118-26 and RM. LÄS MER

  3. 22. LDI-MS strategies for analysis of polymer degradation products, additives and drugs

    Författare :Nina Aminlashgari; Minna Hakkarainen; Peter J. Schoenmakers; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; laser desorption ionization-mass spectrometry LDI-MS ; surface; polymer degradation products; additive; drugs; nanoparticles; nanocomposites; Kemi; Chemistry;

    Sammanfattning : The advancement of mass spectrometry (MS) has been and continues to be a prominent analytical technique for highly accurate determination of analytes. The goal of this thesis was to develop new laser desorption ionization-mass spectrometric (LDI-MS) methods for analysis of polymer degradation products, additives and drugs. LÄS MER

  4. 23. Structural diversity of the lipid A and core oligosaccharide moieties of the lipopolysaccharides from nontypeable and serotype f Haemophilus influenzae

    Författare :Håkan H. Yildirim; Elke Schweda; Andrzej Gamian; Södertörns högskola; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Haemophilus influenzae; LPS; biosynthesis; NMR; ESI-MS;

    Sammanfattning : This thesis describes structural studies of the oligosaccharide and lipid A moieties of lipopolysaccharides (LPSs) isolated from disease-causing Haemophilus influenzae strains. The nontypeable strains were clinical isolates from the middle ear of children suffering from otitis media and the serotype f strains had been collected from three adults with respiratory tract infections. LÄS MER

  5. 24. Methods for protein analysis by capillary electrophoresis and mass spectrometry

    Författare :Joakim Romson; Åsa Emmer; Peter Dinér; Lukas Käll; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MALDI; Concentration plates; Alkyl ketene dimer; CE-MALDI-MS2; On-target digestion; Automation; Robot; Pieris napi; spermatophore; ESI-MS2; Osteopontin; MALDI; Koncentrationsprovplatta; alkylketenedimer; CE-MALDI-MS2; enzymklyvning på provplatta; Automatisering; Robot; Pieris napi; Spermatofor; ESI-MS2; Osteopontin; Kemi; Chemistry;

    Sammanfattning : Protein analysis is important to understanding biological systems, but sample diversity necessitates a multitude of analysis techniques and methods. Challenges that are addressed include analysis of low abundance samples, fractionation to reduce sample complexity, and automation to reduce time and cost. LÄS MER

  7. 25. SALDI-MS Method Development for Analysis of Pharmaceuticals and Polymer Degradation Products

    Författare :Nina Aminlashgari; Minna Hakkarainen; Klas Engvall; Åsa Emmer; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Surface assisted laser desorption ionization-mass spectrometry SALDI-MS ; polyester degradation products; pharmaceutical compounds; nanoparticles; nanocomposites.;

    Sammanfattning : Surface assisted laser desorption ionization-mass spectrometry (SALDI-MS) was evaluated as a new tool for analysis of polymer degradation products. A SALDI method was developed enabling rapid analysis of low molecular mass polyesters and their degradation products. LÄS MER