Sökning: "polycyclic aromatic hydrocarbons"

Visar resultat 16 - 20 av 103 avhandlingar innehållade orden polycyclic aromatic hydrocarbons.

  1. 16. New methods for determination of airborne pollutants : Focus on tetrabromobisphenol A, organophosphate triesters and polycyclic aromatic hydrocarbons

    Författare :Johanna Tollbäck; Ulrika Nilsson; Peter Haglund; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Air sampling; sampling methods; indoor air; SPE; SPME; extraction; dynamic extraction; online coupling; SWE; subcritical water extraction; GC MS; LC MS; organophosphate triesters; PAH; tetrabromobisphenol A; Analytical chemistry; Analytisk kemi; Analytical Chemistry; analytisk kemi;

    Sammanfattning : The work presented in this thesis concerns the development and evaluation of new methods of sampling and analysis of organic pollutants in the indoor and outdoor environment. In Paper I, the development of a new method was reported for the determination of the brominated flame retardant tetrabromobisphenol A (TBBPA) in air using sampling with glass fiber filter and polyurethane foam (PUF), ultrasonic solvent extraction and liquid chromatography coupled to electrospray ionisation mass spectrometry (LC-ESI/MS). LÄS MER

  3. 17. Biomarkers aiming at cancer risk estimation of polycyclic aromatic hydrocarbons

    Författare :Hans Helleberg; Kimmo Peltonen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical Biology; fysikalisk biologi;

    Sammanfattning : Polycyclic aromatic hydrocarbons (PAH), a family of compounds that are formed in incomplete combustion of organic matter, occur as general pollutants in air and food. Exposure to PAH is, according to preliminary estimates, associated with non-acceptable cancer risks showing the need for improved data to be used in risk estimation. LÄS MER

  4. 18. Applied density functional theory : calculating structures and energies on ribonucleotide reductase and polycyclic aromatic hydrocarbons

    Författare :Kyung-Bin Cho; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 19. Cytochrome P-450 dependent monooxygenases in the mammalian adrenal cortex : properties and role in steroidogenesis and metabolism of polycyclic aromatic hydrocarbons

    Författare :Johan Montelius; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  7. 20. The accessibility and chemical activity of polycyclic aromatic hydrocarbons in soil

    Författare :Fredrik Reichenberg; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytisk kemi; Analytical chemistry; Remediation; Bioavailability; Soil and sediment pollution; Environmental chemistry; Miljökemi;

    Sammanfattning : This thesis proposes the use of two concepts: accessibility and chemical activity. Accessibility describes the mass quantity of PAHs that is or can become available within a given time span and under given conditions. LÄS MER