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| 货号： | 23093 | 规格： | |
| 品牌： | Sigma-Aldrich | 价格： | ￥ |
| 产品分类： | 特价奥特莱斯专区 | 研究领域： | |
| CAS编号： | 分子量： | ||
| 分子式： | 别名： | ||
| 储存条件： | 运输条件： | ||
| 货期： | 应用： | ||
| 说明书： | 备注： | ||
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▍产品信息 品名：玻璃填充 GC 色谱柱（适用于Agilent，配置“A”） 品牌：Sigma-Aldrich 货号：23093 ▍产品描述 In a packed column, the carrier gas percolates through the porous bed and separation is achieved by moving the solutes apart. Packed columns are made up of two main materials; stainless steel and Pyrex glass. Pyrex glass columns are shaped as desired by coiling at about 700°C. Glass column are in some cases treated with silanizing reagent to eliminate the surface hydroxyl groups which becomes catalytically active and produce asymmetric peaks.[1] Carbopack B, better known as graphitized carbon black has nonporous, nonpolar and homogeneous surface. This adsorbent is suitable as stationary phase in both packed and capillary columns. Carbopack B cartridges are more efficient than C-18 for extracting phenols. Use a glass column for applications where high inertness is required, such as for the analysis of active analytes. All glass columns undergo a proprietary high temperature silanization to ensure inertness. This column fits Agilent 5880, 5890, 6890. 7820, and 7890 (configuration A, on-column injection, all detectors except TCD). ▍产品应用 Carbopack B packed glass column was used in GC analysis of C2-C5 fatty acids in aqueous media. |
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