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 |
|---|---|---|---|---|---|---|---|---|
| Merck | LiChrospher® | Reversed-Phase | Silica/C18 | 4.0 mm | 250 mm | 5.0 μm | 100 Å | On request |
| KYA Technologies Corporation | HiQ Sil C18W - 120 | Reversed-Phase | Silica/C18 | 0.5 mm | 50 mm | 3.0 μm | 120 Å | On request |
| Thermo Fisher Scientific | Hypurity | Reversed-Phase | Silica/C18 | 1.0 mm | 30 mm | 3.0 μm | 190 Å | On request |
| Sepax Technologies | Sepax Bio 300 C18 | Reversed-Phase | Silica/C18 | 1.0 mm | 100 mm | 3.0 μm | 300 Å | On request |
| Agilent Technologies | Original ZORBAX | Reversed-Phase | Silica/C18 | 21.0 mm | 250 mm | 7.0 μm | 80 Å | On request |
| Fortis Technologies | Fortis C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 150 mm | 3.0 μm | — | On request |
| WATERS | Bondapak C18 | Reversed-Phase | Silica/C18 | 3.9 mm | 300 mm | 15-20 μm | 125 Å | On request |
| GL Sciences | InertSustain C18 HP | Reversed-Phase | Silica/C18 | 3.0 mm | 150 mm | 3.0 μm | 100 Å | On request |
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