Tefuryltrione,100 μg/mL in Acetonitrile

4种氘代内标混标,2000 μg/mL溶于丙酮(HJ 1189-2021), Custom Labeled Standard @ 2000 μg/Ml in Acetone

D6379-System Resolution Standard,Varied concentrations in Heptane

甲醇中13种苯胺类与2种联苯胺混标(HJ 1210-2021), Custom SVOC Standard @ Varied Conc in Methanol