Daicel 12311 CHIRALCEL OB-H Coated Polysaccharide Derivative Guard HPLC Cartridges, (Pack of 3), 4mm, 10mm, 5µm
The surface of the silica gel is coated with cellulose-tribenzoate
OB is a polysaccharide derivative positive phase coated chiral column, and the surface of the silica gel is coated with cellulose-tribenzoate.
OB is currently the most widely used chiral filler in the world. The excellent separation ability and tolerance of OB column have been reported in various literatures.
CHIRALCEL ® OB-H / CHIRALCEL ® OB is used in the normal phase mobile phase.
| Filler particle size | CHIRALCEL ® OB-H: 5μm CHIRALCEL ® OB: 10μm |
|---|---|
| pressure | In order to extend the service life of the chiral column, it is recommended to keep the pressure below 30MPa. (For CHIRALCEL ® OB columns, please keep the pressure below 10MPa) |
| temperature | 0~40°C |
| Storage solvent | n-Hexane/2-Propanol = 90/10 (v/v) |
Column Care
- The use of a guard column is highly recommended for maximum column life.
- Samples should be dissolved in the mobile phase and should be filtered through a membrane filter of approximately 0.5µm porosity.
- The mobile phase should be displaced with Storage Solvent (Hexane / 2-propanol 9:1) when stored for more than one week.
- When washing is required, use pure Ethanol at an appropriate flow rate for 3 hours.
Important Notice
STRONGLY BASIC solvent modifiers or sample solutions MUST BE AVOIDED, because they are likely to damage the silica gel used in this column.