Sökning: "thiols"

Visar resultat 1 - 5 av 13 uppsatser innehållade ordet thiols.

  1. 1. Analysis of polyfunctional thiols in beer : Developing a novel method of extraction and analysis using GC-FID

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Arvid Lindmark; [2022]
    Nyckelord :Beer; Hops; Thiols; 3MHA; 4MMP; Food Technology; Agriculture and Food Sciences;

    Sammanfattning : In this project, attempts were made to identify and quantify two polyfunctional thiols – 4-mercapto-4-methyl-pentanone and 3-mercaptohexyl acetate – and three monoterpene alcohols – linalool, geraniol, and β-citronellol – in beer samples. In order to avoid the use of hazardous compounds such as dichloromethane and hydroxymercuriobenzoate, common in traditional methods, two novel techniques were tested: a pure liquid-liquid extraction of the beer samples with cyclohexane, and a liquid-liquid extraction with cyclohexane followed by solid phase extraction on silver ion columns. LÄS MER

  3. 2. Inhibited surface-thiols in Geobacter sulfurreducens : Mercury uptake and methylation rates

    Master-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Andreas Granström; [2021]
    Nyckelord :;

    Sammanfattning : Due to daily human (anthropogenic) industrial activity, a lot of elemental mercury (Hg0) has been released to the atmosphere. The mercury can then spread globally, since mercury has the ability to remain atmospheric for up to a year. When mercury deposits, it can end up in anaerobic environments such as sediments and soil. LÄS MER

  4. 3. HgII uptake in Geobacter sulfurreducens spheroplasts : Thiols’ role in Hg partitioning and methylation

    Master-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Andreas Eriksson; [2021]
    Nyckelord :;

    Sammanfattning : Mercury (Hg) is a naturally occurring trace element and pollutant that is ubiquitous in aquatic ecosystems. All Hg species are hazardous, but methylmercury (MeHg) is the most alarming due to its neurotoxicity, teratogenicity, and bioaccumulation in the food web. LÄS MER

  5. 4. Structural Battery Electrolytes

    Kandidat-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Pernilla Öberg; Amanda Halvarsson; Julia Rune; Max Bjerkensjö; [2021]
    Nyckelord :structural battery electrolytes; polymerization-induced phase separation; bicontinuous morphology; lithium-ion conductivity; thiol-ene chemistry; Strukturella batteri-elektrolyter; polymerisations-inducerad fasseparation; bikontinuerlig morfologi; litium-jon konduktivitet; tiol-en kemi;

    Sammanfattning : Strukturella batterier är multifunktionella; de tillhandahåller lagring av elektrokemisk energi samtidigt som de bidrar med en lastbärande funktion. Tillsammans möjliggör detta att batteriet kan integreras i karossen hos ett elektriskt fordon eller apparat. LÄS MER

  7. 5. Thermodynamic stability of methylmercury complexes with low molecular mass thiols

    Kandidat-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Åsa Hallberg; [2017]
    Nyckelord :;

    Sammanfattning : .... LÄS MER