Demeton-S-methyl-sulfoxide, 100 µg/ml, Toluene,

N-Phenyl-2-naphthylamine,100 µg/mL,acetonitrile,1mL,

2,6-Dimethylaniline, 100 µg/ml, Methanol, 5ml

Diltiazem hydrochloride,1000 µg base/mL,MeOH,1mL,