PCB Isomer Standard, 100µg/ml in Isooctane, 1ml

Fenitrothion, 100 µg/ml, Acetonitrile, 5ml

Metformin hydrochloride, 100 µg/ml, Methanol, 1m

Aromatic Comp.-Mix 16, 10.0 µg/ml, Methanol, 1ml