Citric acid [0.1% wt]

Sodium p-perfluorous nonenoxybenzenesulfonate, 50µg/ml in MeOH, 1,2ml

Benzo[a]pyrene-d12, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 63466-71-7

n-Pentadecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 629-62-9