Malaoxon, 100 µg/ml, Toluene, 5ml

Irgarol-d9 (tert-butyl-d9),100 µg/mL,acetonitrile,1mL,

2-Perfluorohexyl (13C2)ethanoic acid (13C2-6:2 FTCA), 50µg/ml in Isopropanol, 1,2ml

Benzene, , , 10ml