Sökning: "preparation classes"

Visar resultat 1 - 5 av 24 avhandlingar innehållade orden preparation classes.

  1. 1. Development of Methods for Determination of Fat and Trace Constituents in Food, with Emphasis on Supercritical Fluid Extraction

    Författare :Hans Berg; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Supercritical fluid extraction; Steroids; SFE; Sample preparation; Meat; Lipid classes; Food; Fatty acid composition; Fat content; 3-butanediol; 2; Diacetyl; Acetoin; Androstenone; vitamins A and E.; Analytical chemistry; Analytisk kemi;

    Sammanfattning : Sample preparation is the most time-consuming step in an analysis. Traditional sample preparation techniques consume large amounts of organic solvents, are time-consuming and are difficult to automate. LÄS MER

  3. 2. Strategy for Monitoring Organic Pollutants in Waste Water with Focus on Improved Sample Preparation

    Författare :Staffan Bergström; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Miljökemi; Environmental chemistry; Analytisk kemi; Analytical chemistry; Membrane extraction; Sample preparation; Organic pollutants; Monitoring strategy; Landfill leachate;

    Sammanfattning : Strategy and methodology is presented for the analysis of organic pollutants, with the purpose of evaluating treatment procedures for landfill leachate. Today, many investigations of treatment procedures are focusing on the measurement of water quality parameters such as chemical and biochemical oxygen demand, (COD and BOD), and total organic carbon, (TOC) when assessing the organic compounds in waste waters. LÄS MER

  4. 3. Structural characterisation of mitochondrial macromolecular complexes using cryo-EM : Mitoribosome biogenesis and respiratory chain supercomplex

    Författare :Sorbhi Rathore; Martin Ott; Daniel Wilson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mitochondria; mitoribosome biogenesis; mitoribosome assembly factors; yeast respiratory supercomplexes; single particle electron cryo-microscopy; cryo-EM sample preparation; Biochemistry; biokemi;

    Sammanfattning : Mitochondria, popularly known as powerhouse of the cell, contain specialised mitoribosomes that synthesise essential membrane proteins. These essential proteins are required to form enzyme complexes, which carry out the process of oxidative phosphorylation (OXPHOS). LÄS MER

  5. 4. Micellar electrokinetic chromatography with laser-induced fluorescence detection applied to the analysis of biological samples

    Författare :Gunnar Thorsén; Andrew G Ewing; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytical Chemistry; analytisk kemi;

    Sammanfattning : The research presented in this thesis is focused on the potential for using the combination of micellar electrokinetic chromatography with laser-induced fluorescence detection for the determination of compounds in biological samples. The topics that have been addressed are the development of separation electrolytes, the need for sample preparation procedures, the derivatization of the compounds of interest and the detection of these by laser-induced fluorescence. LÄS MER

  7. 5. Yrkesutbildning, klass & kunskap : en studie om sociala och politiska implikationer av innehållets organisering i yrkesorienterad utbildning med fokus på 2011 års gymnasiereform

    Författare :Mattias Nylund; Andreas Fejes; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; curriculum theory; vocational education; class; education policy; knowledge; curriculum codes; upper-secondary school; Bernstein; Englund; Olin Wright; Pedagogik; Education;

    Sammanfattning : The overall purpose of this thesis is to critically contextualise the organization of content in Swedish upper-secondary vocational education by highlighting its social and political implications in relation to social class. Policy documents concerning the content of vocational education in Sweden from 1971 to 2011 serve as the main empirical source, with particular attention given to the reform of 2011 (Gy11). LÄS MER