Is the Cogent Column Filter compatible with a 2.1mm ID Column? – FAQ

The Cogent Column Filter is compatible with any stationary phase in any HPLC Column. The Cogent brand of in line, column filters are stainless steel (SS) frits encased in PEEK holders that traps unwanted particles before they get trapped in the frits of HPLC columns. When back pressure begins to build up, these column filters […]

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Should I filter my HPLC Solvents and Buffers before use? – FAQ

The most common cause of excessive back pressure is due to the accumulation of particulates and or permanently adsorbed materials at the top of the HPLC Column. This could be precipitate or un-dissolved particles which can come from your samples or your mobile phase or shredded pieces of pump seals. The best way to minimize […]

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Will the Cogent Column Filters change my current HPLC results? – FAQ

No, the pre-column, Cogent Column Filters will have no effect on your chromatography if your analytes are compatible with PEEK and stainless steel. It will simply protect the column from dust, non-dissolved salts, pump seal particles or dirt that passes from the HPLC pump into a column. Click here to view more information about pre-column […]

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