Search for dissertations about: "Trace-metal"

Showing result 1 - 5 of 38 swedish dissertations containing the word Trace-metal.

  2. 1. Trace metal speciation in the Baltic sea

    Author : Johan Gelting; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Abstract : Physicochemical speciation of metals in natural waters is very important for understanding their distribution, mobility, bioavailability and toxicity. To be able to understand the behaviour of an aqueous element and the transformation between chemical and physical species, there is a need for reliable methods that enable measurements of specific fractions of metals. READ MORE

  4. 2. Iron or Copper? - Method Development and Mechanistic Studies on Cross-Coupling Reactions

    Author : Per-Fredrik Larsson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Iron; Copper; Transition metal; Cross-coupling; Reaction mechanism; Kinetic investigation; Hammett study; Sustainable catalysis; Trace-metal; Mass-transfer; Ligand development; Ligand scope;

    Abstract : The area of catalysis has had an immeasurable impact on modern society. This has been acknowledged through several Nobel prizes during the 20th century ranging from Haber (1918) for the synthesis of ammonia to Richard F. Heck, Ei-ichi Negishi, and Akira Suzuki (2010) for palladium-catalyzed cross-coupling reactions. READ MORE

  5. 3. Trace metal analysis using stripping voltammetry and atomic absorption spectrometry : application to water and fish from the Baltic Sea

    Author : Ingemar Gustavsson; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  6. 4. Colloidal carrier substances : Properties and impact on trace metal distribution in natural waters

    Author : Anna Ledin; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Abstract : Colloidal (0,45 J.Im) are important constituents in the aquatic environment, due to their impact on the mobility and bioavailability of associated components (e.g. metals). READ MORE

  7. 5. Improving trace metal characterisation of ore deposits – a crucial step towards sustainable mining

    Author : Mathis Warlo; Christina Wanhainen; Glenn Bark; Alan Butcher; Thomas Riegler; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ore Geology; Malmgeologi;

    Abstract : Sustainable mining, including the utilisation of an ore body to its full potential, is becoming increasingly important for human society as the demand for metals increases. In order to maximise the recovery of useful metals, detailed characterisation of the ore prior to processing is vital. READ MORE