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Träfflista för sökning "förf:(Göran Petersson 1941) ;pers:(Berglund Pia M)"

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1.
  • Löfgren, Lars, 1964, et al. (författare)
  • Selective assessment of C2-C6 alkenes in air by adsorption sampling and gas chromatography
  • 1991
  • Ingår i: Journal of environmental analytical chemistry. ; 45, s. 39-44
  • Tidskriftsartikel (refereegranskat)abstract
    • A system is described for the specific determination in air of ethene, propene, the four isomeric butenes, cyclopentene and the six isomeric pentenes. The butenes, pentenes and hexenes are well separated from the commonly occurring matrix of alkanes in much higher concentrations. Field samples were taken using easily carried equipment consisting of an air pump connected to an adsorbent cartridge. An advantageous combination of triple-layer adsorbents was found to be Tenax + Carbotrap + Carbosieve S-III. In the laboratory, the hydrocarbons were thermally desorbed into a cold trap. The trap was directly linked to the aluminium oxide PLOT column which effected the alkene separations.
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2.
  • Petersson, Göran, 1941, et al. (författare)
  • Hazardous petrol hydrocarbons from refuelling with and without vapour recovery
  • 1990
  • Ingår i: The science of the total environment. ; 91, s. 49-57
  • Tidskriftsartikel (refereegranskat)abstract
    • Hydrocarbons in air were determined at pioneering European service stations equipped with vapour recovery systems. Vapour recovery was found capable of eliminating 99% of exposure during refuelling and greater than 95% of emissions to air. Vapour recovery is now being rapidly introduced at Swedish service stations as a result of demands concerning environmental and health hazards. The analytical technique used permitted samples corresponding to a single refuelling procedure to be analyzed. Sampling on an adsorbent tube was followed in the laboratory by thermal desorption and capillary gas chromatography. All prominent hydrocarbons were well separated on a methylsilicone phase. These include benzene and the alkenes of special interest with respect to health hazards. The particular importance of alkenes with respect to the formation of ozone and other photooxidants is discussed. The four isomeric butenes and the six isomeric pentenes were determined and found to constitute approximately 10% by weight of the petrol vapour. The highly reactive 2-alkenes were more abundant than the 1-alkenes.
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  • Resultat 1-2 av 2
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tidskriftsartikel (2)
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refereegranskat (2)
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Petersson, Göran, 19 ... (2)
Berglund, Pia M (2)Ta bort avgränsningen
Ramnäs, Olle Jerker, ... (1)
Nordlinder, Rolf (1)
Löfgren, Lars, 1964 (1)
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Chalmers tekniska högskola (2)
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Engelska (2)
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