EPA Method 515.1 Internal Standard

Anthraquinone-d8, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 10439-39-1

Difenoxuron,100 µg/mL,MeOH,1mL,

2,2',4,5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,