EPA Method 552 Internal Standard

2,2',4-Trichlorobiphenyl,100 µg/mL,isooctane,1mL,

Piperazine, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 110-85-0

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