a,a,a-Trifluorotoluene, 20mg/ml in MeOH, 1ml

D5-beta-Zearalenol, 100 µg/ml, Acetonitrile, 1ml

4,4'-DDD, 100 µg/ml, Methanol, 1ml

Chlorpyrifos-methyl-desmethyl TMA salt, 100 µg/ml,