Method 200.8/1638/1640 Internal Standard

2,5-Dimethylphenanthrene , 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3674-66-6

2,4-Dimethylthiophenol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 13616-82-5

Dioxabenzofos, 10mg