ARION® Guard System (AGS) is a universal guard system, which can be connected to almost any column hardware on the market. It is easy to use and it offers the shortest retention time shift of analytes in comparison with other major manufacturers. The AGS consists of a Guard holder and guard cartridge, which is offered with various silica materials according to the stationary phase in the HPLC column used.

Hover over the icons to learn more about Guard Column System.

Click on the icons to learn more about Guard Column System.

Universal – fits to virtually any column

The lowest influence on retention times compared with other guard systems

Small size for easier installation in the column oven

Any orientation of the cartridge

Pressure rating up to 900 bars

Higher bed capacity

ARION® Guard System

Comparison of guard systems from various manufacturers


Both chromatograms below show the separation of Uracil, Acetophenone, Toluene and Naphthalene with ARION® Guard system in Acetonitrile/Water (65:35) at 254 nm. ARION® Guard system does not affect column performance. It does not show any influence on peak symmetry or column resolution. A higher sorbent bed (5 × 4 mm ID) offers a raised capacity without need to couple two cartridges together. All this ensures lower running costs.

ARION® Plus with ARION® Guard System

ARION® Polar with ARION® Guard System