Endosulfan-sulfate, 100 µg/ml, Methanol, 1ml

Perfluoro-n-[1,2,3,4,5-13C5]pentanoic acid, 50µg/ml in MeOH, 1,2ml

Gasoline Additives Mix

D10-Diphenylamine, 100 µg/ml, Ethyl acetate, 1ml