EPA Method 507 - Performance Check Solution

2,3,4-Tribromo-5,6-difluorophenol, 100µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. NA

Tetraphenylrecorcinol bis(diphenylphosphate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 57583-54-7

Butachlor, 100µg/ml in Acetonitrile, 1ml