COSMOCORE (2.6 μm Core Shell Particle)
Nacalai Tesque COSMOCORE 2.6PBr Analytical UHPLC Column, 2.6µm, 90Å, 3mm I.D. x 100mm Length, 1/Pk
Product Number: 13701-91
- Cholesterol-bonded reversed-phase core-shell column
 - Usable under the same conditions as C18 columns
 - Better selectivity for cis-trans isomers, polyphenols, and natural products
 
Core-shell particles consist of a nonporous core inside a porous shell. By using these core-shell particles, one can achieve sharper peaks compared to fully porous silica gel particles of the same diameter.
Compared to fully porous particles, core-shell particles have a more uniform particle diameter therefore, core-shell particles can be packed in the column more uniformly to minimize sample diffusion.
- Ultra-high performance LC results with conventional HPLC equipment
 - Same number of theoretical plates as sub-2 µm columns with half the back pressure
 - Increased loading capacity
 - Excellent pH stability (1.5-10)
 
| Column | 2.6C18 | 2.6Cholester | 2.6PBr | 
|---|---|---|---|
| USP Code | - | L101 | - | 
| Silica Gel | Core-shell type silica | ||
| Particle Size | 2.6 µm | ||
| Average pore size | 1.6 µm | ||
| Pore Size | approx. 90 Å | ||
| Specific Surface Area | approx. 150 m2/g | ||
| Stationary Phase | Octadecyl group | Cholesteryl Group | Pentabromobenzyl group  | 
| Main Interaction | Hydrophobic interaction | Hydrophobic interaction Molecular shape selectivity  | Hydrophobic interaction Dispersion force  | 
| End Capping Treatment | Yes | ||
| Carbon Content | approx. 7% | - | - | 
| pH Range | 1.5-10 | 2-7.5 | |
| Maximum pressure | 60MPa | ||
Column Specifications:
| Product description | Cosmocore® 2.6PBr Packed Column 3.0mmx100mm | 
|---|---|
| Quantity | 1 pc | 
| Manufacturer | Nacalai Tesque | 
| Brand | Cosmocore | 
| Product Type | CoreShell Column | 
| Length | 100 mm | 
| Internal Diameter | 3.0 mm | 
| Particle Size | 2.6 µm | 
| Chemistry Producers Term | PBr (Pentabromobenzyl) | 
| Pore Size | 90 Å | 
| Bet Surface Area [m2/g] | 150.0 | 
| Endcapping | endcapped | 
| Column Type | Analytical Column | 
| Hardware Material | Stainless Steel | 
| Hardware Type | Ready-to-use Column | 
| pH Minimum | 2.0 | 
| pH Maximum | 7.5 | 
| Mode of Separation | Reversed Phase Chromatography (RP) | 
| Technology | HPLC | 
| Matrix | Silica | 
| Particle Morphology | spherical, solid core, porous shell | 
| Pressure Stability | 600 bar | 
Additional Column Sizes are available - Please contact our Sales Team with your requirements.
Cosmosil Columns Online Catalogue:
- Model: 13701-91
 - Manufactured by: Nacalai Tesque
 

					
											














