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Astra Si
ASTRA® brand extends new line of the ARION® HPLC columns. What new these columns bring to you?
- Strict quality control of alkaline and heave metals content during silica gel production process (<10 ppm)
- Narrow particle size and pore volume/size distribution
- Unique production process ensuring high lot-to-lot reproducibility
- High end-capping in gaseous phase
Main particle characteristics:
- High proximity to the circle
- Surface smoothness
- Tight particle size distribution
- No broken particles
- No presence of clustered particles
Applications on Astra® HPLC columns are available at APPLICATION LIST
ASTRA® Si Silicagel
| Endcapping | - |
| USP | Code L3 |
| Mean particle diameter | 4.6±1.2 μm |
| Surface area | 330 m2/g |
| Carbon load | - |
| Proximity to the shape of Circle | 0.96±0.04 |
| Temperature stability | 100 °C |
| pH stability | 2.0 to 7 (depends on buffer used) //Note: Temperature stability depends on mobile phase used and silica bonding// |
| Pore Size | 100 A |
|---|---|
| LC Phases | Silica |
| Particle Type | Fully Porous |
| LC Technique | HPLC |
Brochures
Other Documents
| Product name | ID | Particle Size | LC length | Product code |
|---|---|---|---|---|
| ASTRA® Si HPLC Column, 3,0 µm 100 mm × 2,1 mm | 2.1 mm | 3 µm | 100 mm | AST-5905-II21 |
| ASTRA® Si HPLC Column, 3,0 µm 150 mm × 2,1 mm | 2.1 mm | 3 µm | 150 mm | AST-5905-IK21 |
| ASTRA® Si HPLC Column, 3,0 µm 150 mm x 3,0 mm | 3 mm | 3 µm | 150 mm | AST-5905-IK30 |
| ASTRA® Si HPLC Column, 3,0 µm 50 mm × 2,1 mm | 2.1 mm | 3 µm | 50 mm | AST-5905-IG21 |
| ASTRA® Si HPLC Column, 5,0 µm 150 mm × 4,6 mm | 4.6 mm | 5 µm | AST-5905-LK46 | |
| ASTRA® Si HPLC Column, 5,0 µm 200 mm × 4,6 mm | 4.6 mm | 5 µm | 200 mm | AST-5905-LL46 |
| ASTRA® Si HPLC Column, 5,0 µm 250 mm × 4,0 mm | 4 mm | 5 µm | 250 mm | AST-5905-LM40 |
| ASTRA® Si HPLC Column, 5,0 µm 250 mm × 4,6 mm | 4.6 mm | 5 µm | 250 mm | AST-5905-LM46 |
| ASTRA® Si HPLC Column, 5,0 µm 50 mm x 3,0 mm | 3 mm | 5 µm | 50 mm | AST-5905-LG30 |
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