J’sphere ODS-L80
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4 µm ODS with Three Levels of Hydrophobicity
The J’sphere series of columns consists of three kinds of ODS made from the same silica gel base, each with a different ligand coverage.. The 4 µm, 80 Å silica support provides outstanding chromatographic efficiency, while the high surface area material (500 m2/g) offers exceptional interaction with analytes. This combination provides excellent peak symmetry across all J’sphere products.
The variations in ligand coverage produce three columns with different hydrophobicity, hydrogen bonding capacity, and steric selectivity for tertiary structures. Because of this, J’sphere can be used with confidence to identify structural differences of solutes and to improve the efficiency of separation optimization.
Characteristics
- Choice of three levels of hydrophobicity
- Average over 100,000 plates/meter
- Inert, reproducible support
- Excellent peak symmetry with basic molecules
Applications
Typical applications include: positional isomers and complexing agents
Phase Comparison
The following chart is an overview of the three materials in this series.
| Product Name | Stationary Phase | Bonding | End Capping | Mode | Particle Size (µm) | Pore Size (Å) | Carbon Content | pH Range | Typical Applications |
|---|---|---|---|---|---|---|---|---|---|
| J’sphere ODS-H80 | C18 (USP L1) | Polymeric | Yes | Reversed phase | 4 | 80 | 22 | 1-9 | Remarkably high hydrophobicity and surface coverage with excellent chemical resistance to acid and alkali |
| J’sphere ODS-M80 | C18 (USP L1) | Monomeric | Yes | Reversed phase | 4 | 80 | 14 | 2-7.5 | inert, efficient phase with moderate hydrophobicity and hydrogen bonding capacity |
| J’sphere ODS-L80 | C18 (USP L1) | Polymeric | Yes | Reversed phase | 4 | 80 | 9 | 2-7.5 | Extremely low hydrophobicity with unique selectivity due to hydrogen bonding capacity |
Available Formats
- Prepacked columns & guards
- Capillary (< 1 mm ID)
- Analytical (1.0 – 8.0 mm ID)
- Preparative (10 mm ID & above)
