Guard System

Explore new line of ARION® and ASTRA® HPLC columns

Guard Column System

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.

  • 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

guard system 1


guard system graf1

Comparison of guard systems from various manufacturers


guard system graf2 guard system graf3
ARION® Plus with Arion Guard System ARION® Polar with Arion Guard System
 guard system 2  guard system 3


Both chromatograms above 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.

guard system 4
ARION® Guard exploded view

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