Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane

Leptophos, 100 µg/ml, Ethyl acetate, 5ml

1,1,2,2-Tetrachloroethane

1,4-Bis(2-ethylhexyl)benzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 87117-22-4