Wakopak® Ultra C18 is an ODS column with improved packing agent surface treatment technology and reduced residual silanol groups to the extreme. It is also highly durable in basic eluents above pH 9 that were difficult with other Wakopak® C18 series.
Wakopak® Ultra C18-2 has a particle size of 2 μm for UHPLC.
Wakopak® Ultra C18-5 with 5 μm particle size and Ultra C18-3 with 3 μm particle size which has a same HPLC performance as Wakopak® Ultra C18-2. So it is possible to transfer the analytical conditions easily from HPLC to UHPLC.
| Silica Gel | High-purity spherical silica gel |
|---|---|
| Average Particle Size | 2 µm, 3 µm, 5 µm |
| Specific Surface Area | 320 - 360 m2/g |
| Pore Size | 2 µm: 9.0-11.0 nm 3 µm,5 µm: 11.0-14.0 nm |
| Pore Volume | 2 µm: 0.80 - 0.90 mL/g 3 µm, 5 µm: 0.95 - 1.15 mL/g |
| Functional Group | Octadecyl group |
| Endcap | 〇 |
| Carbon Content | 15.0 - 16.5% |
| USP Code | L1 |
| Recommend pH Range | 1.5 - 10.0 |