(-)-Nicotine ditartrate, >99%, (CAS 65-31-6), 10g

Perdeuterated Internal Standard PAH-mixture 24 1336,12 Acenaphthylene-d8 [93951-97-4] 1024,18 Chrysene-d12 [1719-03-5] 1531,22 Indeno[1,2,3-cd]pyrene-d12 [-] Concentration.: 2µg/ml in Toluene

Metribuzin-diketo, 100 µg/ml, Acetonitrile, 1ml

Theophylline, 100μg/mL in Acetonitrile, 1ml