2,4-二异氰酸甲苯衍生物, 1-(2-Pyridyl)piperazine derivative of 2,4-TDI ,2840 μg/mL in DMSO

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

Stock Solvent Red 26 Standard,300 μg/mL in Xylene

ASTM D6258 储备溶剂红26标准品

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

1,2,3,4,6,7,8-七氯二苯并-对-二恶英, 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin

3,3'-Thiodipropanol ,4 mg/mL in Methanol

3,3'-硫代二丙醇

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

DIN 38414-20 多氯联苯6种混标, DIN 38414-20 PCBs,10 μg/mL in Hexane

EPA 方法- 柴油烃标准品(正构烷烃C10-C28偶数), Diesel Range Hydrocarbons,200 μg/mL in Dichloromethane;Hexane (50:50)

17组分多环芳烃混标, Proposed DEP(MA)-PAH Mix,1000 μg/mL in CH2Cl2