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Browsing Department of Chemistry by Subject "752299"

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    • Alkylation of TEB Acetylide Using Tosylates 

      Andreassen, Emil Kristoffer Skaug (Master thesis, 2018-12-19)
      Alkylated products of 3,3,4,4-tetraethoxybut-1-yne (TEB) where prepared from alkylation of the TEB acetylide with a selection of alkyl tosylates, obtained by tosylation of the corresponding tosylates, and alkyl iodides in ...
    • Analyse av forbindelser av høymolekylær vekt i pollen ved bruk av termokjemolyse-GC-MS og FT-IR 

      Halstenrud, Mari (Master thesis, 2016-11-21)
      Organisk materiale inneholder komplekse polymerer med høy molekylvekt og stor kjemisk stabilitet, som det er vanskelig å analysere med tradisjonelle metoder. Termokjemolyse er en teknikk som kan omdanne de komplekse ...
    • Analyse og derivatisering av fenolar i biooljer 

      Bolstad, Else Helle (Master thesis, 2011-06-01)
      Dagens samfunn er i stor grad avhengige av fossile brensel for å kunne fungere, og med fleire folkerike land i rask økonomisk vekst, er det venta at forbruket av fossile brensel vil auke ytterlegare i åra framover. Dette ...
    • An Analysis of CO2, CH4 and Mixed CO2-CH4 Gas Hydrates: Experimental Phase Equilibria Measurements and Simulations with State-of-the-Art Software 

      Avaldsnes, Ole Gilje (Master thesis, 2014-06-14)
      The enormous amount of CH4 trapped in gas hydrates has led to a growing focus on gas hydrates as a potential future energy source. One of the proposed methods for the production of CH4 from these deposits, is to exchange ...
    • Analysis of Fatty Acids by High Performance Liquid Chromatography and Electrospray Ionization-Mass Spectrometry 

      Sanz Alvarez, Inés Maria (Master thesis, 2019-09-28)
      Fatty acids (FA) have been traditionally analyzed by gas chromatography (GC) as fatty acids methyl esters (FAME) and more recently using mass spectrometry (MS) detection. Since high performance liquid chromatography (HPLC) ...
    • Analytisk karakterisering av asfaltener felt ut ved forskjellige betingelsar frå Athabasca bitumen 

      Fonnes, Stian Haukeland (Master thesis, 2014-05-30)
      Bitumen inneheld organiske sambindingar kor nokre har polare strukturelle trekk som varierar i oppbygnad, eigenskapar og molekylmasse. Dei største og mest polare av desse sambindingane blir under ein samlebetegnelse kalla ...
    • Biosurfactants as Anti-Agglomerants for Gas Hydrates 

      Flatabø, Gudny Øyre (Master thesis, 2013-08-14)
      Gas hydrate blockages in petroleum pipelines are considered a major hazard in the petroleum industry, and with increasing water content and decreasing temperatures, a solution is sought upon that is both environmentally ...
    • Bruk av MRI og NMR-spektroskopi for å karakterisere fukteigenskapar ved ulike magnetiske feltstyrkar 

      Viken, Anita Løbø (Master thesis, 2018-06-27)
      In this thesis, use of Nuclear Magnetic Resonance (NMR)-spectroscopy and Magnetic Resonance Imaging (MRI) is used to characterize pore size and wettability in a porous medium. NMR is a method that is increasingly used in ...
    • Caesium-137 in sediments from two Norwegian fjords- Including dating sediment cores 

      Sværen, Ingrid (Master thesis, 2010-05-31)
      Summary The fission product Cs-137 is present in all parts of the Norwegian environment, brought here atmospherically or by ocean currents. The most important sources are fallout from atmospheric nuclear weapons tests, ...
    • Characterization of complex solutions using relaxation- and diffusion weighted NMR Spectroscopy. 

      Hansen, Hans-Tore Fuglestad (Master thesis, 2017-08-02)
      The need for a sustainable replacement to the conventional fossil fuels is required. Biooils is a potential replacement. The biooil analyzed in this thesis is made from lignin, which is a by-product of paper production. ...
    • Characterizing Triacylglycerol in Cell Culture: Can LCMS replace HPTLC when assessing the effect of metformin in salmon in-vitro fatty liver model? 

      Pasha, Monirul Hoque (Master thesis, 2017-10-25)
      Fatty liver, a health complication for aquacultured fish is developed by the deposition of triacylglycerol (TAG) within liver cells. Metformin has been proven to be an effective drug for ameliorating fatty liver in human ...
    • Chromatographic Fingerprinting and Quality Control of Herbal Medicines: Comparison of two officinal Chinese pharmacopoeia species of Dendrobii based on High-Performance Liquid Chromatography and Chemometric analysis 

      da Costa Mendes, Débora Sara (Master thesis, 2013-08-29)
      The fingerprinting quantitative analysis combining similarity evaluation, Principal Component Analysis (PCA) and Partial Least Squares Discriminant Analysis (PLS-DA) is a valid method for classification of herbal medicine ...
    • Chromatographic Fingerprinting of Chinese Grape Berries 

      Marques de Sousa, Pedro Filipe (Master thesis, 2014-04-14)
      Chromatographic fingerprints from three varieties of grapes produced in China (Giant Rose, Red Globe and Summer Black), were obtained by gas chromatography coupled with mass spectrometry. These grapes were subjected to ...
    • Clathrate hydrate formation in different chemical environments relevant to subsurface CO2 storage 

      Johannesen, Malene Lid (Master thesis, 2018-09-12)
      Storing of carbon dioxide (CO2) as hydrates in the formation of the subsurface permafrost and oceanic areas around the world is a new method of carbon capture and storage (CCS). Clathrate hydrates are solids consisting of ...
    • Cyclopentane Hydrate for Hydrate Wetting Studies 

      Abdulkader, Bashir Mohammed Hissen (Master thesis, 2013-06-03)
      Abstract Gas hydrates are often found in the systems for production of petroleum, natural gas and water systems, which is highly undesirable. In some systems the hydrates can form rapidly into large plugs and agglomerate ...
    • Design and Synthesis of Ruthenium based Olefin Metathesis Catalysts 

      Singstad, Åsmund (Master thesis, 2010-06-01)
      The present Master thesis seeks to develop new unsymmetrical ruthenium-based olefin metathesis catalysts and therein a better understanding of olefin metathesis catalysis with unsymmetrical active complexes. Such catalysts ...
    • Design of iron(ii) spin-crossover compounds using de novo artificial evolution with fitness-function based on DommiMOE's implementation of LFMM 

      Nedrelid, Kjell (Master thesis, 2015-06-01)
      This is a software development adding DommiMOE as a fitness-provider to the de novo artificial intelligence internally called Denoptim. The software supports stochastic conformational search, molecular dynamics, geometry ...
    • Development and validation of a novel method for serotonin and 5-hydroxyindole-acetic acid determination in plasma using liquid chromatography tandem mass spectrometry 

      Abia, Romanus Ogechukwu (Master thesis, 2014-05-07)
      5-Hydroxytryptamine (5-HT) also known as serotonin is a biomarker in gastrointestinal disorder and several other pathological diseases where 5-HT and its metabolite 5-hydroxyindole-acetic acid are implicated. A sensitive ...
    • Development of a novel extraction method for the analysis of prostaglandins and leukotrienes in fish liver by using liquid chromatography mass spectrometry 

      Diab, Joseph Marwan (Master thesis, 2015-09-06)
      Eicosanoids are the major metabolites of fatty acids and they have pro-inflammatory anti-inflammatory proprieties, their role and production in solid biological tissue is important due to correlation with many kinds of ...
    • Development of a solid phase extraction method for evaluating the production of classic and nonclassic eicosanoids in human and fish cells using liquid chromatography tandem mass spectrometry 

      Yang, Yang (Master thesis, 2014-03-14)
      Eicosanoids are the major metabolites of fatty acids and they are correlated with many kinds of diseases such as Alzheimer's, cancer and cardiovascular diseases. Usually, most of the eicosanoids derived from omega-6 fatty ...

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