Heptachlor, 1000µg/ml in Hexane, 1ml

5-Methyl-2-nitrophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 700-38-9

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

Parathion-ethyl, 100 µg/ml, Ethyl acetate, 5ml