Mix 31, 10 µg/ml, Methanol, 10ml

d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no.

PAH Mix, 0.5mg/mL in Acetonitrile, 1ml

1,6-Dimethylnaphthalene