UOP方法720标准品(用GC 分析高纯度邻二甲苯中的杂质), UOP Method 720 Standard,Varied conc. in p-Xylene

标准品, USP 561 Pesticide Standard I,100 μg/mL in Acetonitrile

o-Ethyltoluene

2-乙基甲苯(邻甲乙苯)

十五烷基苯, Pentadecylbenzene

Vitamin M

叶酸

b-Carotene

beta-胡萝卜素

挥发性石油烃混标 / VPH 用标准品, VPH Solution,200 μg/mL in MeOH

生物需氧量, Biological Oxygen Demand Standard,10000 μg/mL in Water

总无机碳标准, Total Inorganic Carbon Standard,1000 μg/mL in Water

汽油套标, Weathered Gasoline Set