EPA Method 502.2 Internal Standard

Stavudine, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 3056-17-5

Hop-17(21)-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 546-99-6

m-Tolualdehyde-DNPH, 100µg/ml in Acetonitrile, 1ml