PAH Internal Standard Spiking Solution, 1.2ml, isooctane

17a-Ethinylestradiol, certified, 0.25g

1,1-Dichloroethylene, in Certan bottle, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 75-35-4

Erythromycin, 100 µg/ml, Methanol, 5ml