Agilent Polaris C8-A HPLC Columns
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Agilent Polaris C8-A HPLC columns provide alternative selectivity for general polar applications and are designed with hydrogen-bond accepting endcapping. The C8-A phase offers reduced retention of hydrophobic compounds compared to the C18-A column. Excellent retention is observed under highly aqueous conditions while avoiding phase collapse and shifting retention times. Manufactured with fully porous silica in 3 µm for higher resolution HPLC methods or 5 µm for traditional HPLC applications.
Features
- C8 stationary phase with hydrogen-bond accepting endcapping
- Reduced retention of hydrophobic analytes compared to Polaris C18-A
- Compatible with 100% aqueous mobile phase
- USP designation of L7
- MetaGuards connect directly to the analytical column – no additional holder is required
- Polaris range also includes C8-Ether for alternative selectivity, and C18-A for increased retention of hydrophobic compounds
Specifications
| Polaris C8-A | |
| Bonded Phase | C8 with hydrogen-bond accepting endcapping |
| Particle Type | Fully Porous |
| Particle Size | 3 µm, 5 µm |
| Pore Size | 180 Å |
| Surface Area | 200 m2/g |
| Endcapped | Yes |
| Carbon Load | 7.4% |
| Maximum Temperature | 60°C |
| pH Range | 2 - 8 |
| Pressure Limit | 400 bar |
| Hardware | Stainless Steel |
| USP Designation | L7 |
Literature
Confidently separate challenging polar compounds with a range of selectivity options