PCB No. 180, 10µg/mL in Isooctane, 10ml

1,2,8,9-Tetrachloro(13C12)dibenzo-p-dioxin, 1.2mL x 50ug/mL, toluene

2H-Perfluoro-[1,2-13C2]-2-decenoic acid (8:2), 50µg/ml in Isopropanol, 1,2ml

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