Internal Standard - Surrogate Mix

2,3,3',4,4',5-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 38380-08-4

Oxyfluorfen

Resorcinol bis(diphenyl phosphate), 100µg/ml in Toluene, 1ml