Search for dissertations about: "UV detection"

Showing result 16 - 20 of 98 swedish dissertations containing the words UV detection.

  2. 16. Development of Laser-Spectroscopic Techniques for New Detection Schemes in Combustion Diagnostics

    Author : Johan Zetterberg; Förbränningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Laser-Spectroscopy; Laser Combustion Diagnostics; Rayleigh scattering; FRS; LIF; Polarization Spectroscopy; PS; IRPS;

    Abstract : The thesis work, aimed at the development of laser-spectroscopic detection schemes, consists of three parts, concerned with the development and application of different techniques. The development of UV filtered Rayleigh scattering (FRS) for thermometry and fuel/air ratio measurements, using a frequency tripled, single-longitudinal-mode alexandrite laser at ~254 nm together with an isotopically enhanced mercury filter, is examined first. READ MORE

  4. 17. Coupled Liquid Separation and Spectrometric Detection of Organic Compounds Containing Hetero-atoms

    Author : Eva Nilsson; Jean Pettersson; Karin Markides; Joanna Szpunar; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; Analytisk kemi; Analytical chemistry; Analytisk kemi;

    Abstract : This thesis exemplifies the strength in the combination of inductively coupled plasma (ICP) spectrometry and electrospray ionization tandem mass spectrometry ESI-MS/MS as detection techniques for liquid chromatography (LC) in the search for and investigation of compounds that bind or can bind hetero-atoms. Furthermore, some aspects involved in the coupling of LC and ICP spectrometry and quantification without identical standards have been studied. READ MORE

  5. 18. Genomic mutational heterogeneity in cancer. lmproved models and tools for driver gene detection

    Author : Martin Boström; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cancer; genomics; ultraviolet light; mutational heterogeneity;

    Abstract : Cancer is a disease that is strongly related to evolution, as mutations that confer a benefit to individual cells face positive selection and eventually lead to tumorigenesis. As such, the search for genes that drive cancer development entails distinguishing positive selection from other sources of increased mutation rates, which requires detailed knowledge of how normal mutation rates vary across the genome. READ MORE

  6. 19. Atmospheric pressure ionisation interface considerations for micro column separation with mass spectrometric detection

    Author : Per J. R. Sjöberg; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; Chemistry; Kemi; Analytical Chemistry; analytisk kemi;

    Abstract : Two miniaturised atmospheric pressure chemical ionisation (APCI) interfaces were developed for micro column separation and their performances were investigated in high temperature open tubular column liquid chromatography and capillary supercritical fluid chromatography (SFC). The most influential parameters, for example, the interface probe position relative to the sampling orifice and the reagent ion plasma composition, were investigated to optimise the ion current signal and stability. READ MORE

  7. 20. Fabrication of cantilever chip with complementary micro channel system in SU-8 for biochemical detection

    Author : Maria Tenje; Avdelningen för Biomedicinsk teknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis presents the works on fabrication and measurements done with micro cantilevers and a micro channel system, fabricated in the photo-resist SU-8. SU-8 is a polymer patterned by UV lithography which offers a cheap and fast processing and is an interesting alternative to standard Si techniques. READ MORE