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

Sulfur Standard: S @ 100 µg/g (0.0100 wt%) in #2 Diesel Fuel

Chlorpyrifos, 1000µg/ml in Hexane 1ml

Benz[a]anthracene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1718-53-2