Dow FR-250, 100µg/ml in Isooctane, 1ml

Pesticide Mix 16, 10µg/ml in Ethylacetate, 1ml

4-Nitrophenol, 10.0 µg/ml, Acetonitrile, 10ml

d4 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL in Isooctane, 1ml