3,3'-Dimethylbenzidine, 100 µg/ml, Acetonitrile,

Perfluoro-n-[1,2,3,4,5-13C5]nonanoic acid, 50µg/ml in MeOH, 1,2ml

1-Ethoxy-2-propanol, certified, 0.25g

n-Pentadecane, ?13C: -30.22, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 629-62-9