Mass-Labelled PCB Solution/Mixture , 1.2ml, nonane

2,3,4,4',6-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL,

2,4,4'-Tribromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Hexachloro-1,3-butadiene, 100µg/ml in Isooctane, 1ml