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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Catalog Number: 7121-05
UOM: 1 * 50 items
Supplier: Avantor


Catalog Number: 7329-06
UOM: 1 * 250 items
Supplier: Avantor





Catalog Number: HICHHI-302
UOM: 1 * 10 items
Supplier: Avantor





Catalog Number: BOHLF766-08
UOM: 1 * 1 items
Supplier: Bohlender


Catalog Number: BOHLN1501-16
UOM: 1 * 1 items
Supplier: Bohlender


Catalog Number: BOHLF766-48
UOM: 1 * 1 items
Supplier: Bohlender




Catalog Number: MANA732983FE
UOM: 1 * 250 items
Supplier: MACHEREY-NAGEL


Catalog Number: MANA732984FE
UOM: 1 * 250 items
Supplier: MACHEREY-NAGEL


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