Sökning: "Photolysis"

Visar resultat 11 - 15 av 51 avhandlingar innehållade ordet Photolysis.

  1. 11. Synthesis of highly brominated diphenyl ethers and aspects on photolysis and indoor spreading

    Författare :Anna Christiansson; Åke Bergman; Eva Jakobsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Miljökemi; Environmental Chemistry; miljökemi;

    Sammanfattning : Adding chemicals to materials to decrease flammability can be dated back to as early as 450 BC when the Egyptians used alum to reduce flammability of wood. Almost 2500 years later brominated flame retardants (BFRs) are used to prevent ignition of textiles, electronics and polymers. LÄS MER

  3. 12. Hydrolysis and photolysis of brominated flame retardants and some traditional persistent organic pollutants : Reactivity as a tool in fate assessement of chemicals

    Författare :Sara Rahm; Åke Bergman; Stellan Marklund; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Miljökemi;

    Sammanfattning : An organic compound that remains in the environment for a long time is regarded as a persistent organic pollutant (POP). Still, persistency is not a well defined property with a firm definition. Instead it is a conceptual property of chemicals for which DDT and PCB are typical representatives. LÄS MER

  4. 13. Effects of pH, ionic strength and light intensity on the flash photolysis of l-tryptophan

    Författare :Bengt Finnström; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 14. Kinetics of proton and electron transfer in heme-copper oxidases

    Författare :Peter Lachmann; Pia Ädelroth; Örjan Hansson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Heme-copper oxidase; electron transfer; proton transfer; nitric oxide reductase; ba3 oxidase; flow-flash; laser-flash photolysis; Biochemistry; biokemi;

    Sammanfattning : Heme-copper oxidases are transmembrane proteins that are found in aerobic and anaerobic respiratory chains. During aerobic respiration, these enzymes reduce dioxygen to water. The energy released in the reaction is used to transport protons across a biological membrane. LÄS MER

  7. 15. A flash photolysis study of the thermal cis-trans isomerization of some aromatic Schiff bases in solution

    Författare :Lars Tegnér; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER