Essays about: "analytical chemistry"

Showing result 21 - 25 of 46 essays containing the words analytical chemistry.

  1. 21. Corrosion behavior of lead-free and dezincification resistant brass alloys in tap water

    University essay from KTH/Kemi

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

    Abstract : 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. READ MORE

  3. 22. The art of making a comprehensive stability study

    University essay from Lunds universitet/Centrum för analys och syntes

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

    Abstract : 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. READ MORE

  4. 23. Development of a Method for Separation of Adenine Nucleotides

    University essay from Lunds universitet/Centrum för analys och syntes

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

    Abstract : 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. READ MORE

  5. 24. Major and trace element geochemical analysis of norites in the Hakefjorden Complex to constrain magma source and magma plumbing systems

    University essay from Lunds universitet/Geologiska institutionen

    Author : Aodhan Barrett; [2020]
    Keywords : Anorthosite; norite; Plagioclase; Hakefjorden Complex; Sweden; Trace Elements; Geochemistry; Magma Origin; Earth and Environmental Sciences;

    Abstract : Major and trace element data taken from plagioclase crystals from anorthosites and related rock units in the Hakefjorden Complex located off the west coast of Sweden were investigated for the purposes of constraining magma chamber processes and the source of the magma. Although the anorthosite units were completely homogenous in regards to its chemistry, the plagioclase in the associated norite and ilmenite-leuconorite units showed substantial variation. READ MORE

  6. 25. Evaluation of pre-concentration techniques for gas chromatographic determination of low amounts of volatile contaminants and degradation products

    University essay from

    Author : Erik Nylander; [2019-07-03T14:55:46Z 2019-07-03T14:55:46Z 2018]
    Keywords : Analytisk kemi; Miljövetenskap; Analytical Chemistry; Environmental Sciences;

    Abstract : The project investigated the compared two pre-concentration methods, Thermal Desorption System (TDS) coupled to a Thermal Extractor (TE) and Multiple Headspace Injection (MHI) using a Multiple Purpose Sampler (MPS) for detecting volatile amines in solid pharmaceutical products and synthesis precursor chemicals samples. The TDS-TE and MHI extractions are directly injected into a Cold Injection System (CIS). READ MORE