1,2,3-Trichlorobenzene, 100µg/ml in MeOH, 5ml

2-Perfluorohexyl-[1,2-13C2]-ethanol (6:2), 50µg/ml in MeOH, 1,2ml

Perfluoro-n-[1,2,3,4,5,6,7-13C7]undecanoic acid, 50µg/ml in MeOH, 1,2ml

Dimethyl sulfoxide