bis(2-Ethylhexyl) phthalate,1000µg/ml in MeOH, 1ml

Mass-Labelled PCB Congener Solution/Mixture, 5µg/ml in Nonane, 1,2ml

Perfluorooctadecanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 16517-11-6

Zolpidem tartrate, 100 µg/ml, Methanol, 1ml