Analysis of low molecular weight hydrocarbons including 1,3-butadiene in engine exhaust gases using an aluminum oxide porous-layer open-tubular fused-silica column.
A method for the quantitative analysis of individual hydrocarbons in the C1-C8 range emitted in engine exhaust gases is described. The procedure provides base-line or near base-line resolution of C4 components including 1,3-butadiene. With a run time of less than 50 min, the light aromatics (benzene, toluene, ethyl benzene, p- and m-xylene, and o-xylene) are resolved during the same analysis as aliphatic hydrocarbons in the C1-C8 range. It is shown that typical 1,3-butadiene levels in engine exhaust are about 5 ppm at each of two engine conditions. Aromatic hydrocarbon levels show a dependence on engine operating conditions, benzene being about 20 ppm at high speed and about 40 ppm at idle.
Pelz
N
N
Department FVA/VE, Daimler-Benz AG, Stuttgart, West Germany.
Dempster
N M
NM
Shore
P R
PR
D000537:Aluminum Oxide; D002070:Butadienes / Q000032:analysis*; D002845:Chromatography; D009153:Mutagens / Q000032:analysis*; D012822:Silicon Dioxide; D001335:Vehicle Emissions / Q000032:analysis*
D002070:Butadienes; D009153:Mutagens; D001335:Vehicle Emissions; D012822:Silicon Dioxide; C031763:1,3-butadiene; D000537:Aluminum Oxide