ES Industries guard column cartridges offer excellent protection for your analytical column. Adding a guard column to your HPLC system extends the life of your analytical column (up to 400%). Placed between the injector and the analytical column, the guard column traps components that would otherwise irreversibly contaminate the stationary phase of the analytical column. Guard columns also buffer against the effects of aggressive mobile phases. Guard column cartridge packing should exactly match the analytical column. They add capacity to your system and ensure no adverse chemical influence on sensitive separations. Using a guard column packed with a stationary phase different from that in the analytical column will provide selective elimination of specific compounds. ES Industries guard column cartridges are packed by a high performance slurry method and will not reduce system performance. They are easy to use and can be changed in seconds.

They are available in analytical (3.2 mm I.D., 2 mm I.D. and 1 mm I.D.), semi-preparative (10 mm I.D.) and preparative (20mm I.D.) sizes. A biocompatible system is also available for broad chemical resistance and low biological binding.

3.2mm ID guard cartridges are used for HPLC columns 4.6mm ID to 3.2mm ID
2.0mm ID guard cartridges are used for HPLC columns 3.0mm ID to 2.0mm ID
1.0mm ID guard cartridges are used for HPLC columns 1.0mm ID
10mm ID guard cartridges are used for columns with 10mm ID and 15mm ID
20mm ID guard cartridges are used for columns with 20mm ID or larger

All guard cartridges require the use of appropriate guard cartridge holder

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