ALK-C18
- Mixed solid phase with both hydrophobic and electrostatic interactions
- Excellent peak shape for basic compounds
- Fast separation of similar samples on a column
Ultisil ALK-C18 is a new generation of C18 column introduced by Welch. In this column, hydrophilic groups are bonded into the silica surface, where large number of silanol groups are replaced, reducing the interactions between basic samples and the silanol groups. As a consequence, the selectivity of ALK-C18 is different from that of traditional C18.
| Columns | USP | pH range | Carbon Loading(%) | Surface Area(m2/g) | Endcapped | Max. Temp.(°C) |
| Ultisil ALK-C18 | L1 | 1.5-10.0 | 12(120Å) | 320(120Å) | Yes | 60(pH≤6.5), 40(pH>6.5) |
All Products for ALK-C18
Particle Size
| 5µm | 3µm |
Length
| 250mm | 150mm | 300mm |
| 100mm |
Column ID
| 3mm | 4.6mm |
| Part Number | Part Name | Particle Size | Length | Column ID | Qty |
|---|---|---|---|---|---|
| H00253-31025 | Ultisil Alk C18, 5µm, 120Å, 250 x 3mm HPLC Column | 5µm | 250mm | 3mm | |
| H00253-31041 | Ultisil Alk C18, 5µm, 120Å, 150 x 4.6mm HPLC Column | 5µm | 150mm | 4.6mm | |
| H00253-31043 | Ultisil Alk C18, 5µm, 120Å, 250 x 4.6mm HPLC Column | 5µm | 250mm | 4.6mm | |
| H00253-31044 | Ultisil Alk C18, 5µm, 120Å, 300 x 4.6mm HPLC Column | 5µm | 300mm | 4.6mm | |
| H00253-21039 | Ultisil Alk C18, 3µm, 120Å, 100 x 4.6mm HPLC Column | 3µm | 100mm | 4.6mm | |
| H00253-21041 | Ultisil Alk C18, 3µm, 120Å, 150 x 4.6mm HPLC Column | 3µm | 150mm | 4.6mm |
