Sökning: "surface analytical techniques"

Visar resultat 1 - 5 av 149 avhandlingar innehållade orden surface analytical techniques.

  1. 1. Electrochemical Aspects of Miniaturized Analytical Platforms

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Oliver Klett; Frank-Michael Matysik; [2003]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; electrochemical detection; microanalytical systems; on-chip CE; ESI; Analytisk kemi; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi; Analytical Chemistry; Analytisk kemi;

    Sammanfattning : This thesis ties some electrochemical aspects of development and fabrication of an analytical system on a microchip together. These aspects develop through the fundamentals of amperometric detection in microsystems and microfabrication via the interaction of electrochemical detection and electrophoretic separation finally to the interfacing of a microsystem to the macro world. LÄS MER

  2. 2. New Techniques for Chiral Separations

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Jeanette Olsson; Lars Blomberg; Steen Honoré Hansen; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; analytical chemistry; chiral separation; GC; CE; CEC; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi; Kemi; Chemistry;

    Sammanfattning : Gas chromatography (GC) has been utilized for the study of enantiomer resolution of the atropisomers of PCBs, o,p´-DDD and o,p´-DDT. Different substituents and concentrations of cyclodextrin, capillary dimensions and type of stationary phase films have been investigated to achieve the resolution of as many of the atropisomers on one column as possible. LÄS MER

  3. 3. Surface Sampling and Automated Liquid Membrane Extraction of Fungicides

    Detta är en avhandling från Department of Analytical Chemistry, Lund University

    Författare :Margareta Sandahl; [1999]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; natural water analysis; microporous membrane liquid-liquid extraction MMLLE ; supported liquid membrane SLM extraction; Dislodgeable fungicide residues; surface sampling; automated sample preparation for HPLC; Analytical chemistry; Analytisk kemi;

    Sammanfattning : A number of approaches for fungicide determination are presented. A surface sampling technique is utilised for the determination of fungicide foliar residues on greenhouse surfaces, mainly leaves. The procedure is based on solvation of the fungicides on the leaf surface with ethanol and HPLC analysis. LÄS MER

  4. 4. Functionalization and characterization of surface supported lipid membranes and their application in cell culture

    Detta är en avhandling från Department of Analytical Chemistry, Lund University

    Författare :Dorota Thid; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cell - surface interaction; supported phospholipid bilayer; IKVAV; DHA; stem progenitor cells; neural cells; surface analytical techniques; QCM-D; surface functionalization; peptide; cell differentiation; cell attachment; membrane; fatty acid;

    Sammanfattning : Phospholipid bilayers supported on a solid surface constitute a versatile, biomimetic platform for a variety of applications, such as biosensing, drug delivery research, cell engineering and as cell membrane mimics in fundamental cell research. Phosphocholine supported lipid bilayers are resistant to cell attachment in a wide range of conditions, and can be functionalized with bioactive signaling molecules to promote specific interactions with cells. LÄS MER

  5. 5. Surface Integrity Characterization of Gears with respect to Running-in

    Detta är en avhandling från Department of Analytical Chemistry, Lund University

    Författare :Dinesh Mallipeddi; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; micropitting; surface asperities; running-in; surface roughness; residual stresses; Gears; surface chemistry;

    Sammanfattning : A gearbox with gears of different sizes is part of a vehicle transmission system that plays an important part in transmitting the engine power to the wheels. The efficient energy transmission highly relies on the performance of gears. Together, the mesh efficiency and durability determines the gear performance. LÄS MER