Precolumn filters are essential for protecting HPLC columns against particulate matter which can accumulate on the column frit, leading to split peaks and high backpressure. Sources of particles include mobile phases (especially when buffers are mixed with organic solvents), leaking pump and injector seals, and samples. Precolumn filters are also useful because changing the column frit is extremely difficult to do without disturbing the column packing, whereas changing the precolumn filter’s frit is easy, providing relatively inexpensive insurance against column damage.
Avantor® Hichrom, Frits, Cap Style
Supplier: HICHROM
These cap style frits used to preserve the packaging material within the column itself.
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Avantor® ACE®, HPLC Precolumn Filters
Supplier: Avantor
These precolumn filters with PEEK body and stainless steel frit provide protection for analytical and microbore columns. They connect directly to the column without the need for an additional holder.
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Avantor® Hichrom, Stainless Steel Frits
Supplier: HICHROM
Avantor® Hichrom, Frits, Black, Porosity: 0,5 µm, Frit material: Stainless steel
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Avantor® Hichrom, Frit Removal Tool
Supplier: HICHROM
The frit removal tool is ideal for the removal of frits used in HPLC/LC columns.
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Avantor® ACE®, UHPLC Pre-Column Filters
Supplier: Avantor
Avantor® ACE® UHPLC pre-column filters made from stainless steel/PEEK provide protection for all UHPLC columns. They offer ultra-low dispersion for maximum compatibility with UHPLC instruments and columns. For use with Waters 'Classic' Acquity® systems, an alternative Waters Acquity® compatible version provides improved performance.
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Avantor® Hichrom, PEEK Frit
Supplier: HICHROM
Avantor® Hichrom, Frit, Porosity: 2,0 µm, Frit material: PEEK
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Avantor® Hichrom, Preparative Frit Assembly
Supplier: HICHROM
Avantor® Hichrom, Preparative frit assembly, Natural, Porosity: 2,0 µm
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VWR® Hichrom Precolumn Filters
Supplier: HICHROM
Placed immediately before the column, the precolumn filter traps particles introduced with the sample. For samples, which may irreversibly absorb onto the column, the use of guard cartridges is strongly recommended.
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Avantor® Hichrom, Column Frits
Supplier: HICHROM
Frit made of 316 grade stainless steel.