Sökning: "silver ions"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden silver ions.

  1. 1. The Stern-Gerlach Spectrometer for Charged Particles : A step towards an alternative method for measuring spin

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Samuel Eriksson; [2023]
    Nyckelord :Stern-Gerlach; Stern; Gerlach; spin; time-of-flight; time of flight; magnetic moment; spectrometer; Physics and Astronomy;

    Sammanfattning : The purpose of this project is to investigate the performance of a spectrometer capable of measuring both momentum and spin of particles. More specifically, we investigated what parameters are required in order to separate particles with opposite spins at least 1 mm. LÄS MER

  3. 2. 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

  4. 3. Oxygen Reduction Catalysts in Alkaline Electrolyte

    Kandidat-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Avital Cherednik; Anders Abrahamsson; Bjarne Falk; [2020]
    Nyckelord :Alkaline Fuel Cells; Catalyst; Silver; Nano Particles; Radiolysis; Gamma-radiation;

    Sammanfattning : Alkaline fuel cells are a promising technology, with their sturdy design and many applications they are held back mostly by their cost. By introducing a catalyst, the activation energy of the cell can be reduced to an overcomable amount. LÄS MER

  5. 4. Do Nanoparticles Affect Neuronal Function? - Establishment of a Microelectrode-Based Assay

    Master-uppsats, Lunds universitet/Tillämpad biokemi

    Författare :Markus Nylander; [2020]
    Nyckelord :Microelectrode array; gold nanoparticles; silver nanoparticles; immunocytochemistry; scanning electron microscopy; human neural progenitor cells; human induced pluripotent stem cells; applied biochemistry; tillämpad biokemi; Biology and Life Sciences; Technology and Engineering;

    Sammanfattning : Nanomaterials are used extensively in industry and daily life but comparatively little is known about the possible health effects. Silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) are two metal nanoparticles that have been intensively studied. LÄS MER

  7. 5. MSn Structural Determination of Fatty AcidIsomers in Mixtures using Silver Cationization and Articial Neural Networks

    Master-uppsats, Uppsala universitet/Analytisk kemi

    Författare :Johan Lillja; [2018]
    Nyckelord :;

    Sammanfattning : Fatty acid double bond positional isomers are expressed differently in healthy and diseased tissue. To utilize a mass spectrometry imaging approach to spatially map the distribution of fatty acids in tissue, a method needs to be developed to separate fatty acid isomers by the distribution of fragment ions. LÄS MER