Flumequine, 100 µg/ml, Methanol, 1ml

4H-Cyclopenta[def]phenanthren-4-one,1000 µg/mL,toluene,1mL,

17?(H),21ß(H)-(22R)-Homohopane, 500µg/mL in Isooctane, 1mL

Hexachloroethane