Determination of crude oil alkylated dibenzothiophenes in environment
Julkaistu sarjassa
Research report / Department of Chemistry, University of JyväskyläTekijät
Päivämäärä
1989Polycyclic aromatic hydrocarbons and alkylated dibenzothiophenes were analysed from natural samples and different oils using GC/MS and HPLC. These compounds were identified from different samples by GC/MS. Quantitative determinations were made by GC/MS and HPLC. Alkylated dibenzothiophenes were found to be quite persistent oil residues in nature. A method to separate the alkylated dibenzothiophenes from the nonpolar aromatic compound fraction was searched. TLC, ligand exchange chromatography and oxidation of dibenzothiophenes to sulfones were tried. The oxidation of the dibenzothiophenes to the corresponding sulfones was found to be quantitative and the separation of the sulfones from other compounds was achieved by column chromatography. Methyldibenzothiophenes were synthesized from methylbiphenyls and sulfur by Friedel Crafts reaction using aluminium chloride as catalyte. The structure of the synthesized compounds was verified by GC/MS and NMR.
ISBN
978-952-86-0251-4Metadata
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