The Brownlee conventional column pre-filter and guard column holder systems allow you to select from three different levels of column protection that couple directly to the head of your column.
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The high pressure filter (N9303711) simply contains a filter frit selectable in two different diameters (2.0 mm or 4.0 mm) and two different frit porosities (2.0 μm or 0.5 μm) for basic protection against particulates in the sample or mobile phase. The 10 mm guard cartridge holder without a pre-filter (N9303713) provides protection against compounds that irreversibly absorb onto the stationary phase. The 10 mm guard cartridge holder with a pre-filter (N9303712) provides the ultimate in column protection with a selectable filter frit for elimination of particulates along with a guard cartridge packed with a selectable stationary phase to protection against compounds that irreversibly absorb onto the stationary phase.
|Product Group||Guard Holder and Accessories|