Vamidothion-sulfoxide, 100 µg/ml, Acetonitrile,

4-Aminobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 92-67-1

1,2,3,6,7,8-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

EPA 16 PAH Cocktail (13C,99%), 5µg/ml Nonane,1,2ml