Tri-n-butyl phosphate, 1.2ml x 50ug/ml, toluene

Perfluoro-n-hexane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 355-42-0

epsilon-HCH, 10μg/ml in Acetonitrile, 1ml

Citric acid [3% wt]