自定义标准@甲醇中的不同浓度, Custom Standard @ Varied concentration in Methanol

9种烷基酚类和双酚A混标,2000 μg/mL溶于乙腈(HJ 1192-2021), Custom Alkyl Phenol Mix@2000 μg/mL in Acetonitrile

甲醇中1000μg/mL的定制有机锡标准, Custom Organotin Standard @ 1000 μg/mL in Methanol

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