Internal Standard Solution, 1.2ml, nonane

n-Butyl acetate, 3000µg/mL, Solvent-Methanol, Unit 1mL, # of units-1, Cas.no. 123-86-4

Estriol, 10 µg/ml, Acetonitrile, 10ml

Mass-Labelled PFCAs and PFSAs Mix, 2µg/ml in MeOH, 1,2ml