PCB Congeners & Hexachlorobenzene Mix #3

Acifluorfen-methyl, 10.0 µg/ml, Acetonitrile, 10

2,3,4,5-Tetrabromobenzoic acid [13C6 ring], 1.2ml x 50ug/ml, methanol

1,4-Dichlorobenzene, 1000µg/ml in MeOH, 1ml