Ofloxacin, 100 µg/ml, Methanol, 1ml

1,2,7,8-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

6-n-Butylchrysene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 6901-71-9

Carbamazepine 10,11-epoxide, 100μg/ml in MeOH, 1ml