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

4-n-Propylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 645-56-7

N-Nitrosodi-n-butylamine, 1000μg/ml in MeOH, 1ml

Citric acid [0.1% wt]