Sökning: "electrospray nanoparticles"

Visar resultat 6 - 10 av 10 avhandlingar innehållade orden electrospray nanoparticles.

  1. 6. 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

  3. 7. 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. 8. From Silica Nano-Particles to Silica Gels and Beyond - Salt Induced Aggregation of Silica Nano-Particles and the Stability of Resultant Gels

    Författare :Christian Sögaard; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Silica; Nanoparticles; grouting; Specific ion effects; Nanomaterial;

    Sammanfattning : Aqueous silica nanoparticle suspensions are widely available and used within a number of industries. A relatively new area of application is as a grouting material for sealing narrow fractures in tunnels. LÄS MER

  5. 9. Modification of Oxide Surfaces with Functional Organic Molecules, Nanoparticles, and Hetero-Oxide Layers

    Författare :Shilpi Chaudhary; Synkrotronljusfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:2015:Chaudhary;

    Sammanfattning : The research work described in this thesis is concerned with the modification of oxide surfaces, as reflected by its title. The surfaces and their modification have been studied using a range of experimental surface characterization tools, in particular x-ray photoelectron spectroscopy (XPS), fluorescence microscopy, scanning electron microscopy, atomic force microscopy, and scanning tunneling microscopy. LÄS MER

  7. 10. Capillary electroseparations with mass spectrometric detection Nanoparticle-based continuous full filling and applications for complex sample matrices

    Författare :Peter Viberg; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytisk kemi; Analytical chemistry; phthalates; continuous full filling; heterocyclic aromatic amines; pseudostationary phase; capillary electrophoresis; electrokinetic chromatography; capillary electrochromatography; nanoelectrospray; mass spectrometry;

    Sammanfattning : One of the major challenges in analytical chemistry is to find techniques and methods for determinations of low abundance compounds in complex sample matrices. This thesis describes the development of new miniaturised analytical techniques comprising capillary electroseparation combined with mass spectrometric detection. LÄS MER