RSpak DE-413L 250x4.6mm Polymer based Normal & Reversed Phase Column

The RSpak DE-413L HPLC column 250x4.6mm, 4µm, uses the same ligand-free polymethacrylate phase with 25Å pores as DE-413, but in a longer column format. This gives RSpak DE-413L increased separation performance for polar compounds with aqueous, buffered or alkaline mobile phases. Typical applications are water-soluble vitamins, preservatives, organic acids and polar pharmaceuticals.

Features and Benefits

• Silica-free polymer phases
• Reverse-phase and mixed-mode available
• Wide pH range
• Excellent retention of polar compounds
• Robust specialty phases for sugars and acids

Additional Information

RSpak comprises various polymer matrices made of styrene-divinylbenzene, polymethacrylate, polyhydroxymethacrylate, and polyvinyl alcohol. Selectivity arises either from the intrinsic polymer surface or from additional sulfo, carboxyl, or ammonium groups. As a result, the product family ranges from polymeric reverse-phase columns to HILIC-like distribution, as well as mixed-mode, ligand-exchange, and ion-exclusion mechanisms. The silica-free packing materials are particularly suitable for extreme pH values and highly aqueous mobile phases.

Legal Information

Shodex is a registered trademark of Resonac Corporation, Tokyo, Japan. RSpak is a product line within the Shodex portfolio.