Citric acid [0.3% wt]

Bis(2-ethoxyethyl) phthalate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 605-54-9

Terbuthylazine, 10.0 µg/ml, Acetonitrile, 10ml

PAH 16Mixture, 100µg/ml in MeOH, 1ml