Method 8121 - Surrogate Standard

Tetrachlorvinphos, 100 µg/ml, Acetonitrile, 5ml

Benzo[a]naphtha[8,1,2-cde]naphthacene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 192-70-1

2,3,4-Trichloronitrobenzene, 250mg