by Welch Materials
Ultisil XB-Silica columns is applied with ultra high purity (>99.999%) type B silica particles, and there is no metal contents in the column. Just like the XB-CN column, the XB-SiO2 column can be use in the normal and reverse phase. We could get good result for the analysis of polar compounds which always leads to peak tailing.
| Vendor | Welch Materials | Internal Diameter | |
| Brand | Ultisil XB-SiO2 | Pore size | 120 |
| Modifification | Silica | Surface Area | 320 |
| Mode | Normal-Phase | Carbon Load, % | 0.0 |
| Particle Size | Endcapped | No | |
| Length | Product usage | Polar compounds |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| ES Industries | Chromegasphere SI 300 (Spherical) | Normal-Phase | Silica | 4.6 mm | 50 mm | 10.0 μm | 300 Å | On request |
| Princeton Chromatography Inc. | PrincetonSPHER SILICA-100 | Normal-Phase | Silica | 30.0 mm | 250 mm | 5.0 μm | 100 Å | On request |
| GL Sciences | Inertsil SIL-100A | Normal-Phase | Silica | 2.1 mm | 75 mm | 5.0 μm | 100 Å | On request |
| ES Industries | Chromegasphere SI 100 (Spherical) | Normal-Phase | Silica | 4.0 mm | 50 mm | 3.0 μm | 100 Å | On request |
| GRACE | Prevail Silica | Normal-Phase | Silica | 3.0 mm | 150 mm | 5.0 μm | 110 Å | On request |
| GL Sciences | Inertsil SIL-100A | Normal-Phase | Silica | 4.6 mm | 30 mm | 3.0 μm | 100 Å | On request |
| Princeton Chromatography Inc. | PrincetonSPHER SILICA-300 | Normal-Phase | Silica | 4.0 mm | 250 mm | 10.0 μm | 300 Å | On request |
| ES Industries | Chromegasphere SI 60 (Spherical) | Normal-Phase | Silica | 2.0 mm | 150 mm | 5.0 μm | 60 Å | On request |
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