5000 µS/cm calibration solution (230mL)

D12-Benzo[a]pyrene, 10.0 µg/ml, Acetonitrile, 10

4-(Trifluoromethyl)cyclohexan-1-carboxylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 95233-30-0

Ethynylestradiol (20,21-13C2,99%) 100 µg/mL in Acetonitrile, 1,2ml