Internal Standard - Surrogate Mix

Isobutyl alcohol, 1g

2,4'-Dichlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 34883-43-7

Fenbendazole, 100 µg/ml, Acetonitrile, 5ml