Flubendazole, 100 µg/ml, Acetonitrile, 1ml

EPA Method 507Mix #8, 100µg/ml in Aetone, 1ml

n-Perfluoropentanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2706-90-3

Hexachlorobenzene (13C6, 99%), 100µg/ml in Nonane, 1,2ml