You Searched For: 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.

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.


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Supplier: Avantor
Description: These cap style frits used to preserve the packaging material within the column itself.

Catalog Number: (7121-05)
Supplier: Avantor
Description: J.T.Baker® BAKERBOND spe™, Frits for 3 ml polypropylene columns
UOM: 1 * 50 items


Supplier: Bohlender
Description: These frits are made from PTFE.

Catalog Number: (HI-300)
Supplier: Avantor
Description: The frit removal tool is ideal for the removal of frits used in HPLC/LC columns.
UOM: 1 * 1 items


Supplier: Merck
Description: Precolumn filter kit has a standard 10-32 fitting and fits direct to most column types without introducing an additional dead volume.

Supplier: Avantor
Description: J.T.Baker® BAKERBOND®, PTFE frits for 3 ml glass columns
Supplier: Avantor
Description: 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.

Supplier: Avantor
Description: 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.

Supplier: Avantor
Description: 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.

Supplier: Avantor
Description: Frit made of 316 grade stainless steel.

Supplier: Bohlender
Description: These PTFE gas distributors and frits are suitable for steady sparkling of the flowing gas.

Catalog Number: (MICS49650-005)
Supplier: MICROSOLV
Description: The flter protects columns from particulates and extends the column life-time.
UOM: 1 * 10 items


Supplier: MACHEREY-NAGEL
Description: CHROMABOND®, CHROMABOND® Flash DL 25, PE filter elements, 21,2 mm ID

Supplier: VARIAN
Description: PP frit, are made with high-grade, clean PE for clean extracts.

Supplier: THOMSON INSTRUMENT
Description: Used in conjunction with SINGLE StEP columns with dry sample loading to compact the sample and help prevent channeling.

Supplier: VICI JOUR RESEARCH
Description: Precolumn filter, Stainless steel, Porosity: 2,0 µm, 1000 bar, Swept volume: 0,68 µl

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on 0800 22 33 44
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Additional Documentation may be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organisation. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
Product(s) marked with this symbol are discontinued - sold till end of stock. Alternatives may be available by searching with the VWR Catalogue Number listed above. If you need further assistance, please call VWR Customer Service on 0800 22 33 44.
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