Ofloxacin,100 µg/mL,MeOH,1mL,

Chrysene-d12, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1719-03-5

EPA Method 508A DCB Stock Solution

n-Heneicosane, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 629-94-7