4-Chlorophenol, 100 µg/ml, Methanol, 5ml

Hexachloro-1,3-butadiene-13C4,100 µg/mL,isooctane,1mL,

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

D-(+)-Maltose monohydrate