Sökning: "GC-MS"

Visar resultat 1 - 5 av 93 uppsatser innehållade ordet GC-MS.

  1. 1. Partial hydrodeoxygenation of a heavy bio-based oil fraction : (A technical feasibility study)

    Master-uppsats, KTH/Kemiteknik

    Författare :Akshay Menon; [2020]
    Nyckelord :Hydrodeoxygenation; Tall oil pitch; oxygen removal; sulphidation; catalyst;

    Sammanfattning : This report is intended to provide the reader with an extensive background information on hydrode oxygenation (HDO) of Tall Oil Pitch (TOP), combined with results from chemical property analyses of the same. Firstly, the importance of hydrogenation and oxygen removal for a biomass-based feed material is highlighted. LÄS MER

  2. 2. Mechanism of Formation of Soft Particles in Biodiesel Fuel Blends

    Master-uppsats, KTH/Materialvetenskap

    Författare :Roberta Maria Fiorenza; [2020]
    Nyckelord :;

    Sammanfattning : The large environmental impact related to the use of fossil fuel has driven the shift toward renewable sourced alternatives. Fossil diesel can be nowadays replaced by biodiesel, obtained from vegetable oils and fats, mostly used as biodiesel blends. LÄS MER

  3. 3. Vidareutveckling av katalysatorer för pre-reforming i bränslecellssystem

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Alexander Schönauer; [2020]
    Nyckelord :catalysis; pre-reforming; fuel cells; SOFC; DMSOFC; heterogeneous catalysts; propane reforming; chemical engineering; kemiteknik; Technology and Engineering;

    Sammanfattning : Heterogeneous catalysts to be used in a pre-reformer for fuel cell systems have been investigated based on active phase composition and catalyst preparation methods for granulate and monolithic catalysts. The catalysts were manufactured using θ – aluminum oxide as carrier, promoted with lanthanum and cerium, with active phases consisting of noble metal X and nickel in various concentrations. LÄS MER

  4. 4. Method Development for Sample Preparation of Fish for Non-target Analysis of Hydrophobic Organic Pollutants

    Master-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Bergdís Björk Bæringsdóttir; [2020]
    Nyckelord :;

    Sammanfattning : Monitoring methods for environmental pollutants are mostly performed with targeted analysis which relies on predetermined compounds. This can cause an underestimation of possible toxicants as it might not detect undiscovered compounds such as breakdown products of other chemicals. LÄS MER

  5. 5. Direkta kvantifieringsmetoder av etylenglykol i patientprov : En litteraturstudie

    Kandidat-uppsats, Jönköping University/HHJ, Avd. för naturvetenskap och biomedicin; Jönköping University/HHJ, Avd. för naturvetenskap och biomedicin

    Författare :Viktor Kindbom; Wasim Othman; [2020]
    Nyckelord :enzymatic method; thermal desorption-gas chromatography; comparison; sensitivity; specificity; enzymatisk metod; termisk desorption-gaskromatografi; jämförelse; sensitivitet; specificitet;

    Sammanfattning : Etylenglykol (EG) är ett toxiskt ämne som kan orsaka livsfarliga komplikationer. Syftet med studien var att genom systematiska litteratursökningar göra en sammanställning och en jämförelse av metoder som används för direkt kvantifiering av EG i patientprov. LÄS MER