Clofibric acid, 100 µg/ml, Acetonitrile, 1ml

2-Benzyl-4-chlorophenol, 100mg

Perfluorononanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 375-95-1

13C3-Cephacetrile, 10mg