EPA Method 551.1 Performance Check Sol’n

Bis(2-propylheptyl) phthalate,neat,neat,10mg,

Benzo[k]fluoranthene, 10µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 207-08-9

1,2,3,7,8,9-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene