2-Chlorophenol, 100 µg/ml, Acetonitrile, 5ml

(±)-Atenolol,100 µg/mL,MeOH,1mL,

3-Hydroxybenzo[a]pyrene, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 13345-21-6

Cefotaxime Sodium, 1g