EPA Method 8260 Internal Standard - Revised

5 alpha(H)-Androstan-17-one, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 963-74-6

1,4-Chrysenequinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 100900-16-1

ICP-MS Mix