624B Internal / Surrogate Standard

9-Nitrophenanthrene, 10µg/mL in Cyclohexane, 10ml

2,2'-Dihydroxy-4,4'-dimethoxybenzophenone, 1000mg

1,2,3-Trichloropropane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 96-18-4