EPA Method 507 - Internal Standard

Phenytoin,neat,neat,100mg,

Dibenz[a,h]anthracene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 53-70-3

4-n-Nonylphenol, 100µg/ml in MeOH, 5ml