D3-(±)-Naproxen, 100 µg/ml, Methanol, 1ml

1,2,3,4-Tetrachloronaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 20020-02-4

Dibenzo[a,e]pyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 192-65-4

EPA Method 8270C - B/N Matrix Spiking Solution