Mass-Labelled PCB Extraction Standards, 1.2ml, nonane

Leptophos, 10.0 µg/ml, Ethyl acetate, 10ml

2,6-Dichlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 33146-45-1

1-Nitrobenzo[e]pyrene