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

1,2-Bis(phenylthio)ethane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 622-20-8

1-Ethylpyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 17088-22-1

1-Heptanol, 1ml