Carbopack^™吸附剂

Carbotrap^®/Carbopack^™ adsorbent can withstand high bake-out temperature without losing the mechanical and chemical integrity. It has a high affinity for isoprene and does not retain significant amounts of water. Furthermore it has a tendency to pulverize if it is packed too tightly. Carbotrap^®/Carbopack^™ adsorbent was used to quantitatively determine trace amounts of volatile organic compounds (VOCs) in air. It was also used for designing sampling protocols on the basis of its retention volume of the gaseous organic compounds of interest.

石墨化炭黑(GCB)可以是无孔的或多孔的。石墨化过程产生高纯度表面，具有很好的吸附和解吸（如果需要）性质。表面相互作用仅取决于色散（伦敦）力。这些粒子的特性包括：

• 颗粒状
• 粉末状
• 用于相对于C3-C20+正构烷烃分析分子大小
• 疏水性（可用于高湿度环境）

通常，相对于碳分子筛(CMS)吸附剂，GCB吸附剂吸附强度相对较弱，与球形石墨化聚合物碳(SGPC)吸附剂类似。我们的Carbopack产品是一种GCB吸附剂。

• 粒径为40目或更小
• 使用40/60目防止串流（如果使用20/40目碳捕集吸附剂观察^® ）
• 用更小的目数（60/80，80/100等）开展其他应用
• 只要应用能够应对压降，即可使用最小可用粒度

更多有关我们的专业碳吸附剂的资料，请见sigma-aldrich.com/carbon

Carbopack^™ Y was used for determination of contamination caused by pesticides like alachlor, atrazine, captan, formothion, lindane and phosalone in atmospheric samples. Carbopack^™ Y was modified with mono-molecular layer of heptakis-(2,3,6-tri-O-methyl)-ß-cyclodextrin and was used in gas chromatography to study the effect of size and spatial structure of adsorbate molecules on adsorption of organic vapours.

Carbopack is a trademark of Merck KGaA, Darmstadt, Germany

Carbotrap is a registered trademark of Merck KGaA, Darmstadt, Germany