Sodium perfluoro-1-hexanesulfonate, 50µg/ml in MeOH, 1,2ml

Diazinon, 10 µg/ml, Ethyl acetate, 10ml

Qualitative Reference Petroleum Set, 3 x 1ml

x of 4-Nonyl- and 4-t-Octylphenols ethoxylates, 20/4µg/ml in Acetone, 1ml