N-ethylperfluoro-1-octanesulfonamidoacetic acid (linear),2 μg/mL in Methanol

4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone , 1000 μg/mL in MeOH

14种醛酮-DNPH衍生物混标,不同浓度溶于乙腈, Custom DNPH Standard@ Varied conc. In Acetonitrile