UOP方法551标准品(GC检测低沸点烃类), UOP Method 551 Standard,Equal Mass %

标准品, USP 232 Oral Impurities Mix 3,100 μg/mL in 10% Hydrochloric acid

n-Amylbenzene

正戊基苯

1,2,3,5-Tetramethylbenzene

1,2,3,5-四甲基苯

Vitamin C

抗坏血酸/维生素C

Vitamin K1

维生素K1

挥发性石油烃混标 / VPH15种混标, VPH Solution,200 μg/mL in MeOH

化学需氧标准品(COD), Chemical Oxygen Demand Std,500 μg/mL in Water

PH-4标准品, Inorganic Wet Chemical pH Std,pH 4 in Water

总有机碳, Total Organic Carbon Std,1000 μg/mL in Water, tr Sulfuric acid