1-(2-吡啶基)哌嗪衍生物4,4'-MDI, 1-(2-Pyridyl)piperazine derivative of 4,4'-MDI ,2280 μg/mL in DMSO

1,2,3,4,7,8-六氯二苯并-对-二恶英, 1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin

标准品, Trace Impurities in Monocyclic Aromatic Hydrocarbons,Varied concentrations by percent w/w

D-6296 甲基叔丁基醚的校准标准品, D-6296 Calibration Standard with MTBE,Varied Conc %w/w

D-6296系统的安装和验证标准标准品套装, D-6296 System Setup &Verification Set

超临界流体色谱法分析汽油中的烯烃含量用标准品(烯烃校准储备标准品), D-6550 Stock Olefin Standard,Varied Conc %w/w

标准品, Gasoline Boiling Range Distribution by GC

壬基酚标准品套标, Nonylphenols in Environmental Waters-SET

标准品, ASTM Carbamate Standard,Varied conc. in Methanol

DIN 38407-14 的游离酸混标, DIN 38407-14 Free Acid Mix,500 μg/mL in Methanol