Sökning: "Gas Phase Analysis"

Visar resultat 1 - 5 av 275 avhandlingar innehållade orden Gas Phase Analysis.

  1. 1. Transport in Oxides Studied by Gas Phase Analysis

    Författare :Qian Dong; Gunnar Hultquist; W.J. Quadakkers; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gas Phase Analysis; metal; oxide; platinum; vitreous silica; yttria stabilized zirconia; diatomic gas; oxidation; dissociation; permeation; uptake release.; Chemical engineering; Kemiteknik;

    Sammanfattning : The transport in oxides is studied by the use of gas phase analysis (GPA). An experimental method to identify transported species of gases and their contribution to the overall transport of gases in oxides and an experimental method to evaluate the parameters diffusivity, concentration, permeability of gases in oxides and effective pore size in oxides are developed, respectively. LÄS MER

  3. 2. Improved methods for enrichment of organic ultra trace components for analysis by gas chromatography

    Författare :Adam Kloskowski; KTH; []
    Nyckelord :water analysis; gas analysis; environmental analysis; sorbent trapping; organic traces; SPME; OTT;

    Sammanfattning : This thesis describes some new methods for analysis oforganic trace components from air and water by gaschromatography. The work is particularly focused on thedevelopment of new technologies for analyte enrichment, usingsorbent-based concepts. Short lengths of open tubular columnswere examined for their potential use as denuders. LÄS MER

  4. 3. Two-phase flows in gas-evolving electrochemical applications

    Författare :Ruben Wetind; KTH; []
    Nyckelord :two-phase flow; electrochemical; gas-evolving; chlorate process; micro-bubbles; two-fluid model; numerical modelling; mixture model; drift-flux model; gas-evolving; electrolysis; current distribution; dispersion; image analysis; laser-sheet; fibre;

    Sammanfattning : .... LÄS MER

  5. 4. Gas-Phase Protein Structure Under the Computational Microscope : Hydration, Titration, and Temperature

    Författare :Erik Marklund; David van der Spoel; Albert Heck; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular dynamics; gas phase; proteins; micelles; proton transfer; Grothuss mechanism; kinetics; Physics; Fysik; Physics with specialization in Biophysics; Fysik med inriktning mot biofysik;

    Sammanfattning : Although the native environment of the vast majority of proteins is a complex aqueous solution, like the interior of a cell, many analysis methods for assessing chemical and physical properties of biomolecules require the sample to be aerosolized; that is, transferred to the gas-phase. An important example is electrospray-ionization mass spectrometry, which can provide a wide range of information about e. LÄS MER

  7. 5. Studies of transport in some oxides by gas phase analysis

    Författare :Qian Dong; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; gas phase analysis GPA ; secondary ion mass spectrometry SIMS ; chromium; platinum; quartz; porous oxides; Soil science; Markvetenskap;

    Sammanfattning : .... LÄS MER