Guard columns can provide many benefits when used upstream from an analytical, preparative, or semi-preparative column. Guard columns are typically chosen to have the same packing as the primary column. Any compounds or particulate material that would block the frits or highly adsorb to the primary column will do so on the guard column, thereby protecting and extending the lifetime of the more costly column. In addition to protective uses, guard columns can be used as sacrificial preparative components.
With some applications, guard columns can be used instead of solid-phase extraction or other matrix-removing preparative steps. In many cases, this can reduce the preparative cost per sample. The use of a guard column will protect the investment of an analytical, preparative, or semi-preparative column.
Semiprep/Preparative Guard Column, HxSil C18
Analytical Guard Column, HxSil C18
HxSil C18 Analytical Guard Column Replacement Cartridges (5/pk), Stainless Steel
HxSil C18 Analytical Guard Column Starter Kit (1 holder, 2 cartridges), Stainless Steel
HxSil C18 Semiprep/Preparative Guard Column Replacement Cartridges (2/pk), Stainless Steel
HxSil C18 Semiprep/Preparative Guard Column Starter Kit (1 holder, 1 cartridge), Stainless Steel
Analytical Guard Cartridge Holder, Stainless Steel
Semiprep/Preparative Guard Cartridge Holder, Stainless Steel
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