To achieve optimal performance from a flash chromatography system, column quality is essential. RediSep® Flash Columns from Teledyne LABS are ideal to deliver reliable and reproducible purification results across a wide range of applications.
These columns support:
- High-capacity purification
- Precise packing for high resolution and reproducibility
- Consistent performance from milligram to tens of grams scale
The columns feature a one-piece design without adapters, valves, or additional hardware. Luer end-fittings allow quick and easy connection to CombiFlash® systems, supporting efficient workflows and straightforward scale-up.
Column types
RediSep Gold
RediSep Gold flash columns use fine spherical silica gel (20–40 µm) to deliver high performance and improved sample purity. The spherical silica enables uniform packing, creating linear beds for even separations without increasing back pressure. These columns are available with different chemistries, including bare silica and bonded phases such as C18, C18Aq, C8, and amine.
RediSep Silver
RediSep Silver disposable flash columns are ideal for general-purpose purifications. They support high-resolution extraction of organic compounds from natural products and provide reproducible results in applications such as flavors and food chemistry.
RediSep Bronze
Normal phase silica columns (40 – 60 µm) are ideal for high-volume, cost-conscious labs, offering the high quality and safety standards found throughout the RediSep product line.
Features and design
RediSep® columns exist for versatility, ease of use, and efficiency. They are packed with high-quality stationary phases, including spherical silica and alumina, enabling effective separation of hydrophilic, lipophilic, and intermediate polarity compounds under various flash conditions.
The design focuses on usability and durability:
- One-piece construction for simplified handling
- Luer end-fittings for direct system connection
- High-quality materials for consistent performance over repeated use
Performance characteristics
The columns provide efficient and reliable separations:
- High separation efficiency through engineered stationary phases and particle sizes
- Broad selectivity for different compound types
- Capability to handle a wide range of sample polarities
- Durable construction supporting repeated use
Advanced materials such as deactivated silica are used to support compound stability and maintain performance during purification.
Use the RediSep Flash columns even on non-Teledyne Isco Flash systems

RediSep columns have a Luer-Lokâ„¢ inlet fitting, and a Luer-slip outlet, and so are compatible with all flash systems. For systems that use a shuttle to hold the column and injection ports, RediSep columns can be installed like any other column.
For systems that connect the column only with tubing, the column is attached using the same fittings as for other columns.
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