Benzo(a)pyrene, 100µg/ml in Acetonitrile, 1ml

Ibuprofen-13C,d3, 1mg

Perfluoro-n-[1,2,3,4-13C4]heptanoic acid, 50µg/ml in MeOH, 1,2ml

1H,1,H,2H,2H-Perfluorodecyl acrylate-d3, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.