Sökning: "Analytical Chemistry"

Visar resultat 21 - 25 av 57 uppsatser innehållade orden Analytical Chemistry.

  1. 21. Electrically Modified Quartz Crystal Microbalance to Study Surface Chemistry Using Plasma Electrons as Reducing Agents

    Master-uppsats, Linköpings universitet/Kemi

    Författare :Pentti Niiranen; [2021]
    Nyckelord :Plasma enhanced chemical vapor deposition; PECVD; Quartz crystal microbalance; QCM;

    Sammanfattning : Metallic films are important in various applications, such as electric devices where it can act as contacts. In electrical devices, the substrate typically consists of silicon dioxide (SiO2) which is a temperature-sensitive substrate. LÄS MER

  3. 22. Electrical wiring of Shewanella oneidensis MR-1 with osmium polymers of different redox potentials

    Master-uppsats, Lunds universitet/Kemiska institutionen; Lunds universitet/Beräkningskemi

    Författare :Laleh Tavakoli; [2021]
    Nyckelord :Analytical Chemistry; Bio-Analytical Chemistry; Electrochemistry; Bacteria; Osmium redox polymers; Shewanella Oneidensis MR-1; electrode; Microbial electrosynthesis; Electron transfer; Chemistry;

    Sammanfattning : The results of studies have shown that the several applications such as microbial electrochemical system (MES), bio-electrochemical systems (BESs) and production of beneficial chemicals are due to electrochemical connection among electrodes and microorganisms. The following two factors are important in choosing the microbe mediated electrochemical biosensors: I) Binding of bacterial cells on the electrode, II) Efficient electron transfer (EET) between the electrode and the cells by a mediator. LÄS MER

  4. 23. Corrosion behavior of lead-free and dezincification resistant brass alloys in tap water

    Master-uppsats, KTH/Kemi

    Författare :naza Alexis; [2021]
    Nyckelord :Corrosion; lead-free; brass; dezincification; electrochemistry; Korrosion; blyfri; mässing; avzinkning; elektrokemi;

    Sammanfattning : Avzinkningshärdiga och blyfria mässingslegeringar används i stor utsträckning för att ersätta blyinnehållande mässingslegeringar som används för dricksvattensapplikationer. På grund av det begränsade antalet korrosionsstudier av dessa legeringar är syftet med denna studie att belysa hur vattensammansättning, temperatur och exponeringstid kan påverka legeringarnas korrosionsegenskaper. LÄS MER

  5. 24. The art of making a comprehensive stability study

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Roman Lord; [2020]
    Nyckelord :Biopharmaceuticals; mAbs; SEC; stability study design; technical analytical chemistry; teknisk analytisk kemi; Technology and Engineering; Chemistry;

    Sammanfattning : There is a need for harmonisation of stability study designs of monoclonal antibodies. Monoclonal antibodies (mAbs) are widely used in treatments for various diseases. Like all drugs, their quality must be verified through stability studies. LÄS MER

  7. 25. Development of a Method for Separation of Adenine Nucleotides

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Erika Miegel; [2020]
    Nyckelord :analytical chemistry; HPLC; HILIC; chromatography; technical analytical chemistry; teknisk analytisk kemi; Chemistry; Technology and Engineering;

    Sammanfattning : Adenosine tetraphosphate, or Ap4A, is a nucleotide with very interesting proposed biological effects. Previous studies have indicated that blood glucose levels in mammals might increase in the presence of Ap4A, and that Ap4A might antagonize pancreatic ATP channels. LÄS MER