UOP方法660标准品(环丁砜1000 ppm 溶于水), UOP Method 660 Standard,0.1% w/w in Water

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

Hexylbenzene

1-苯基己烷

m-Ethyltoluene

3-乙基甲苯(间甲乙苯)

Vitamin D3

胆骨化醇/维生素d3

Vitamin D2

维生素D2

挥发性石油烃混标/VPH 基质加标用标准品 11种混标, VPH Matrix Spike ,Varied conc. in MeOH

油和油脂标准品, Oil and Grease Standard,1000 μg/mL in Propanol

PH-7标准品, Inorganic Wet Chemical pH Std,pH 7 in Water

矿物油21 种耐磨金属多元素套标, Wear Metal Multi-Element Set