EPA Method 8250/8250A Cal Check Cmpds Acids

1,8-Dimethylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7372-87-4

Copper (Cu)

Caffeine,100 µg/mL,MeOH,1mL,