RSpak DM-G 4A, 4.6 x 250 mm, HPLC guard column

The RSpak DM Guard Columns 250x4.6mm, 12µm, are used to protect RSpak DM HPLC columns used. The phase-identically packed guard columns are complete pre-columns and are operated without a separate cartridge holder.

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.