Precolumn Filters and Frits
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: Avantor
These cap style frits used to preserve the packaging material within the column itself.
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J.T.Baker® BAKERBOND spe™, Frits for Filtration Columns
Supplier: Avantor
J.T.Baker® BAKERBOND spe™, Frits for 3 ml polypropylene columns
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Avantor® Hichrom, Preparative Frit Assembly
Supplier: Avantor
Avantor® Hichrom, Preparative frit assembly, Natural, Porosity: 2,0 µm
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Frits for suction filters, BOLA
Supplier: Bohlender
These frits are made from PTFE.
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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® 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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Precolumn filters, ColumnSaver
Supplier: Merck
Precolumn filter kit has a standard 10-32 fitting and fits direct to most column types without introducing an additional dead volume.
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Avantor® Hichrom, Frit Removal Tool
Supplier: Avantor
The frit removal tool is ideal for the removal of frits used in HPLC/LC columns.
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VWR® Hichrom Precolumn Filters
Supplier: Avantor
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: Avantor
Frit made of 316 grade stainless steel.
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Avantor® Hichrom, PEEK Frit
Supplier: Avantor
Avantor® Hichrom, Frit, Porosity: 2,0 µm, Frit material: PEEK
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Avantor® Hichrom, Stainless Steel Frits
Supplier: Avantor
Avantor® Hichrom, Frits, 0,750×0,700×0,881, Porosity: 20,0 µm, Frit material: Stainless steel
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J.T.Baker® BAKERBOND®, Frits for Glass Columns
Supplier: Avantor
J.T.Baker® BAKERBOND®, PTFE frits for 8 ml glass columns
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Gas distributors and frits for scrubber bottles and columns, BOLA
Supplier: Bohlender
These PTFE gas distributors and frits are suitable for steady sparkling of the flowing gas.
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Head space frits for SINGLE StEP flash chromatography columns
Supplier: THOMSON INSTRUMENT
Used in conjunction with SINGLE StEP columns with dry sample loading to compact the sample and help prevent channeling.
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Flash chromatography cartridges, filter elements, CHROMABOND® Flash DL
Supplier: MACHEREY-NAGEL
CHROMABOND®, CHROMABOND® Flash DL 15, PE filter elements, 21,2 mm ID
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#: 20864.320
Supplier: VWR Chemicals
#: 83640.320
Supplier: VWR Chemicals
#: 31770.294
Supplier: VWR Chemicals
#: 1.00030.2500
Supplier: Merck
#: 83645.320
Supplier: VWR Chemicals
#: 20060.320
Supplier: VWR Chemicals