Phosfolan, 10 µg/ml, Cyclohexane, 10ml

1,2,3,4,7,8-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

EPA Method 500 Internal Standard #6

Sodium perfluoro-1-undecanesulfonate, 50µg/ml MeOH, 1,2ml