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

Thiophene in Toluene Units: 5x1mL ampoule, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4053-0 Blank 0 S-4053-K 1 000 0.1000 S-4053-2.5K 2 500 0.2500 S-4053-5K

1-Hydroxypyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 5315-79-7

N-Nitrosodimethylamine, 1000μg/ml in MeOH, 1ml