Metformin hydrochloride, 100 µg/ml, Methanol, 1m

2',3',4',5'-Tetrachloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene

EU Drinking Water Directive PFAS Mixture, 10µg/mL in MeOH:Water, 1ml

3-Pentanol