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Selective assessment of C2-C6 alkenes in air by adsorption sampling and gas chromatography

Lars Löfgren (Institutionen för kemisk miljövetenskap) ; Rolf Nordlinder (Institutionen för kemisk miljövetenskap) ; Pia M Berglund (Institutionen för kemisk miljövetenskap) ; Göran Petersson (Institutionen för kemisk miljövetenskap) ; Olle Ramnäs (Institutionen för kemisk miljövetenskap)
Journal of environmental analytical chemistry Vol. 45 (1991), p. 39-44.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: ethene, propene, butenes, pentenes, gasoline, vapor, exhaust



Denna post skapades 2008-08-03. Senast ändrad 2011-07-02.
CPL Pubid: 72632

 

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Institutioner (Chalmers)

Institutionen för kemisk miljövetenskap (1900-2003)

Ämnesområden

Analytisk kemi
Miljökemi

Chalmers infrastruktur