1,2,3,7,8-Pentachlorodibenzofuran , 1.2ml x 50ug/ml, nonane

2-Perfluorooctyl-[1,2-13C2]-ethanol (8:2), 50µg/ml in MeOH, 1,2ml

Benzobicyclon, 10.0 µg/ml, Acetonitrile, 10ml

D6729 Calibration Standard Mixtures Reference sample ARC96OX from Alberta Research Council, Edmonton, Canada Spark ignition engine fuel standard of known composition and concentration by mass.