Search for dissertations about: "FTIR spectra"

Showing result 1 - 5 of 26 swedish dissertations containing the words FTIR spectra.

  1. 1. Application of Infrared and UV-Visible Remote Sensing Techniques for Studying the Stratosphere and for Estimating Antrophogenic Emissions

    University dissertation from Chalmers University of Technology

    Author : Johan Mellqvist; Chalmers tekniska högskola.; Chalmers University of Technology.; [1999]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics; FTIR; stratospheric ozone; VOC; fugitive emissions; long path FTIR; DOAS; flue gas; temperature dependence; non linearity;

    Abstract : Infrared and UV/visible broadband absorption techniques have been used in three applications related to environmental research and atmospheric science. The techniques are based on measuring the attenuation of light by the atmosphere in the infrared and UV/visible region, and since a very large number of species absorb light in these wavelength regions, the techniques studied allow the measurement of several species simultaneously. READ MORE

  2. 2. The choreography of protein vibrations Improved methods of observing and simulating the infrared absorption of proteins

    University dissertation from Stockholm : Department of Biochemistry and Biophysics, Stockholm University

    Author : Eeva-Liisa Karjalainen; Stockholms universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Infrared spectroscopy; FTIR; protein; atpase; amyloid; caged compound; amide I; transition dipole coupling; exciton theory; simulation; NATURAL SCIENCES Chemistry Molecular biophysics; NATURVETENSKAP Kemi Molekylär biofysik; Biophysics; biofysik;

    Abstract : The work presented in this thesis has striven toward improving the capability to study proteins using infrared (IR) spectroscopy. This includes development of new and improved experimental and theoretical methods to selectively observe and simulate protein vibrations. READ MORE

  3. 3. A Study of the Interaction between the HOO radical and some small Molecules

    University dissertation from Thomas Svensson, Chemical Physics, Chemical center, Lund University, Box 124, 221 00 Lund

    Author : Thomas Svensson; Lunds universitet.; Lund University.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysikalisk kemi; Physical chemistry; ab initio; peroxy radical; molecular interactions; matrix isolation; FTIR; infrared; Chemistry; Kemi;

    Abstract : The HOO radical is a key intermediate in the atmosphere and is involved in a large number of reactions, including ozone loss cycles in the stratosphere and oxidation processes in the troposphere. This theses is a study of the HOO radical and its interactions with a number of small molecules that are present in the atmosphere. READ MORE

  4. 4. Novel on-line mid infrared detection strategies in capillary electrophoretic systems

    University dissertation from Stockholm : Institutionen för analytisk kemi

    Author : Malin Kölhed; Stockholms universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; on-line hyphenation; mid infrared detection; capillary electrophoresis; FTIR; quantum cascade laser; aqueous samples; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi;

    Abstract : Infrared absorption spectra can provide analytically useful information on a large variety of compounds, ranging from small ions to large biological molecules. In fact, all analytes that possess a dipole moment that changes during vibration are infrared-active. The infrared (IR) spectrum can be subdivided into far-, mid- and near- regions. READ MORE

  5. 5. Gas Adsorption and Permeation in MFI Zeolites and Membranes

    University dissertation from Chalmers University of Technology

    Author : Sang Kompiang Wirawan; Chalmers tekniska högskola.; Chalmers University of Technology.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik; Chemical engineering; MFI zeolites; adsorption; FTIR spectra; TPD; composite membranes; WGS membrane reactor;

    Abstract : The single and multi component gas adsorption behavior on silicalite-1 and cation exchanged MZSM-5 zeolites (M = H, Na, and Ba) were investigated by a step change response method. Temperature programmed desorption (TPD) and in-situ fourier transform infrared (FTIR) spectroscopy were also performed to study the type of adsorbed species and their thermal stabilities. READ MORE