Astra AQ HPLC column 5.0 µm 250 mm × 4.6 mm
HPLC column developed in the Czech Republic.
- Description
HPLC column developed in the Czech Republic. HPLC column particles are continuously analyzed by SEM.
The column is suitable for analytical separations.
Main particle characteristics:
- Close proximity to a sphere.
- Highly effective endcapping.
- No broken particles.
- Robustness to high pressures.
- Lot-to-lot reproducibility.
- Unique modern embedded phases.
Column hardware:
- Electropolished with very low Ra reduces wall effect.
Silicagel specification
| Particle size | 5 µm | 3 µm |
| Metal content | <10 ppm | <10 ppm |
| Mean particle diameter | 4.6 ± 1.2 µm | 3.0 ± 0.7 µm |
| Proximity to the shape of sphere | 0.97 ± 0.04 | 0.97 ± 0.03 |
Phase specification
| Phase |
Particle size (µm) |
Pore size (Å) | Surface area (m2/g) | Carbon load | pH stability | Endcapping | 100% aqueous mobile phase | USP code |
| C18-HE | 3; 5 | 100 | 330 | 17 % | 2 to 9 | High | No | L1 |
| C18-AQ | 3; 5 | 100 | 330 | 13 % | 2 to 9 | Mixed | Yes | L1 |
| DM | 3; 5 | 100 | 330 | 12 % | 2 to 9 | High | No | - |
ECOM is a global supplier of scientific and laboratory instruments for liquid chromatography. The company was established in October 1991 and it is focused on research, development, and manufacturing of scientific and laboratory equipment for liquid chromatography. Our innovative R&D and dynamic processes allow us to quickly react on customer’s needs and to propose customised products and solutions. ECOM’s focus on high quality products and responsive service supports high performance of its customers.
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