Lincomycin-d3, 0,5mg

Sodium 1H,1H,2H,2H-perfluoro-1-[1,2-13C2]-hexane sulfonate (4:2), 50µg/ml in MeOH, 1,2ml

Metosulam, 100 µg/ml, Acetonitrile, 5ml

4-Hydroxy-2',3',4',5'-tetrachlorobiphenyl, 10mg