4-Methoxy-2,2',5'-trichlorobiphenyl, 100µg/ml in IO, 1ml

Chlorobenzene

Mono-n-butyl phthalate (ring-1,2-13C2, dicarboxyl-13C2, 99%) 100 µg/mL in MTBE, 1,2ml

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