ASTRA®
Why ASTRA®?
Why ASTRA®?
The ASTRA® has been developed in the Czech Republic to offer an alternative to a broad range of general HPLC columns. ASTRA® brings a completely new and unique stationary phase with a polar-embedded group to offer complementary selectivity.
Hover over the icons to learn more about ASTRA®.
Click on the icons to learn more about ASTRA®.
New and unique multimodal phases
C18 phases with endcapping in gaseous process
Strict quality control during the silica gel production
Redundant production system
Production process ensuring lot-to-lot reproducibility
The best quality/price ratio
| CHROMSHELL® phases | 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 | × | L1 |
| C18-AQ | 3, 5 | 100 | 330 | 13 % | 2 to 9 | Mixed | ✓ | L1 |
| DM | 3, 5 | 100 | 330 | 12 % | 2 to 9 | High | × | – |
What Does ASTRA® Quality Look Like?
What Does ASTRA® Quality Look Like?
ASTRA® particles have a very tight distribution and the highest proximity to the shape of a spherical particle ….
ASTRA® vs. Competitor
ASTRA® Ultrapure Silica Gel Particles
ASTRA® Ultrapure Silica Gel Particles
Close proximity to the sphere
Highly effective endcapping
No broken particles
Robustness under high pressure
Batch-to-batch reproducibility
Column-to-column reproducibility