13. Determine the content of aromatic hydrocarbons C6-C8 in the analyzed fraction of hydrocarbon gas pyrolysis tar. n-octane was added to the analyzed sample as an internal standard (0.4468 g of n-octane was added to 2.0343 g of the sample).
Hydrocarbon Spike, mm2 K
Benzene 120 1.00
Toluene 231 1.02
Ethylbenzene 84 1.035
o-Xylene 19 1.05
Styrene 121 1.05
n-Octane (standard) 146 0.92

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