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Cosmosil® Cholester
Nacalai Tesque COSMOSIL 3Cholester Analytical HPLC Column, 3µm, 120Å, 3mm I.D. x 75mm Length, 1/Pk
Product Number: 19195-61
HPLC Column for Structural Isomers
COSMOSIL Cholester is a reversed phase HPLC column with Cholesteryl bonded silica packing material, which provides equivalent hydrophobicity like that of traditional ODS columns. However, Cholester offers strong stereoselectivity for hydrophobic compounds to yield unique and reproducible separation patterns following the same analytical conditions used with other ODS columns.
Cholesteryl bonded groups are very rigid structures and offer improved separation of compounds that are difficult to analyze with Alkyl Group bonded materials.
- Cholesterol bonded stationary phase
- Usable under condition the same as C18
- Increased stereoselectivity and improved resolution for geometric isomers
- For separation of natural compounds
- COSMOSIL Cholester provides the same hydrophobicity as ODS and C30 columns.
| COSMOSIL Cholester | ||||
|---|---|---|---|---|
| USP code | L101 | |||
| Silica gel | High purity porous spherical silica | |||
| Average particle size | 2.5 µm 2.5Cholester | 3 µm 3Cholester | 5 µm 5Cholester | 15 µm 15Cholester |
| Average pore size | approx. 130Å | approx. 120Å | approx. 120Å | approx. 120Å |
| Specific surface area | approx. 330m2/g | approx. 300m2/g | approx. 300m2/g | approx. 300m2/g |
| Stationary phase | Cholesteryl group | |||
| Bonding type | Monomeric | |||
| End capping treatment | Near-perfect treatment | |||
| Carbon content | approx. 21% | - | approx. 20% | approx. 20% |
| pH range | 2 - 7.5 | |||
Column Specifications:
| Product Description | Cosmosil® 3Cholester Packed Column 3.0mmx75mm |
|---|---|
| Quantity | 1 pc |
| Manufacturer | Nacalai Tesque |
| Brand | Cosmosil |
| Product Type | HPLC Column |
| Silica Gel | High Purity Porous Spherical Silica |
| Length | 75 mm |
| Internal Diameter | 3.0 mm |
| Particle Size | 3 µm |
| Chemistry | Cholesterol |
| Main Interaction | Hydrophobic Interaction Stereoselectivity |
| Chemistry Producers Term | Cholester |
| Pore Size | 120 Å |
| USP Class | L101 |
| Bet Surface Area | 300m2/g |
| 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 | High-Performance Liquid Chromatography (HPLC) |
| Matrix | Silica |
| Particle Morphology | spherical, fully porous |
Additional Column Sizes are available - Please contact our Sales Team with your requirements.
Cosmosil Columns Online Catalogue:
- Model: 19195-61
- Manufactured by: Nacalai Tesque
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