Penicillin G potassium, 100µg/mL in Acetonitrile, 1ml

Diethylene glycol, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 111-46-6

Sulfamethazine-d4, 1mg

2,3',4,4',5,5'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-72-6