Tetracontane, 100 µg/ml, Hexane, 10ml

Iopanoic acid,10 µg/mL,water,1mL,

Triflusulfuron-methyl, 100 µg/ml, Acetonitrile,

N-Nitroso-N-ethylaniline, 100μg/ml in MeOH, 5ml