Pre-Column Filters | Protect Your Columns | 2um or 0.5um
Our technical team strongly recommends that you filter every sample before you inject them into your column with a syringe filter. However, even with pre-filtering, your samples could agglomerate or precipitate in the vial or pick up particles from your injector. An additional and most economical way to protect your columns and guard columns is to use a disposable, Pre-Column Filter.
These low-cost filters have finger tight fittings that are easily hand tightened into the inlet nut of the HPLC column or guard column. The stainless steel frit inside this filter is available in 0.5um, 2um or 10um pore sizes. When you see back pressure rising, it’s time to replace the pre-column filter with its trapped particles.
Click HERE for Guard Column Holders.