Tecnazene, 10.0 µg/ml, Cyclohexane, 10ml

Purified asfalthenes from North Sea Oil,neat,neat,100mg,

Acetylsalicylic acid, 100 µg/ml, Acetonitrile, 1

Penicillin G potassium, 100µg/mL in Acetonitrile, 1ml