PCB Congener Internal Standard Mix

Nitrobenzene, 1000µg/ml in MeOH, 1ml

Dicyclohexyl phthalate-3,4,5,6-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 358731-25-6

2,2',3,3',4,4',5,6-Octabromodiphenyl ether, 1.2ml x 50ug/ml, toluene