Oxamyl, 100 µg/ml, Acetonitrile, 5ml

Fentanyl

4-Amino-2´,3-dimethylazobenzene, certified, 0.25g

Sodium bis(1H,1H,2H,2H-[1,2-13C2]perfluorooctyl)phosphate, 50µg/ml in MeOH, 1,2ml