by Welch Materials
Ultisil XB-C18 columns, featuring high surface coverage and exhaustive endcapping, are an excellent choice as a general purpose C18 column for a wide variety of organic compounds. The bonding chemistry is optimized specifi cally for our base material. Our proprietary double end-capping leads to optimal performance with neutral, polar, acidic, basic, and chelating compounds.
| Vendor | Welch Materials | Pore size | 120 |
| Brand | Ultisil XB-C18 | Surface Area | 320 |
| Modifification | Silica/C18 | Carbon Load, % | 17.0 |
| Mode | Reversed-Phase | Endcapped | Yes |
| Particle Size | pH stability from | 1.5 | |
| Length | pH stability to | 10.0 | |
| Internal Diameter |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| GL Sciences | Inertsil ODS-3 | Reversed-Phase | Silica/C18 | 4.0 mm | 150 mm | 5.0 μm | 100 Å | On request |
| MACHEREY-NAGEL | NUCLEODUR C18 GRAVITY | Reversed-Phase | Silica/C18 | 4.0 mm | 250 mm | 3.0 μm | 110 Å | 576.00 |
| Teknokroma | Mediterranea Sea18 | Reversed-Phase | Silica/C18 | 3.0 mm | 200 mm | 3.0 μm | 100 Å | On request |
| KNAUER | Eurosil Bioselect | Reversed-Phase | Silica/C18 | 2.0 mm | 150 mm | 5.0 μm | 300 Å | On request |
| Imtakt | Presto FF-C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 100 mm | 2.0 μm | Non-Porous Å | On request |
| GL Sciences | Inertsil WP300 C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 250 mm | 5.0 μm | 300 Å | On request |
| Welch Materials | Topsil C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 3.0 μm | 150 Å | On request |
| GRACE | Alltima HP C18 ESP | Reversed-Phase | Silica/C18 | 4.6 mm | 150 mm | 5.0 μm | 190 Å | On request |
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