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Precolumn Filters and Frits

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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.


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Description:   Diba Chromatography Column Frit, 50 mm dia, 30 µm, PTFE
Catalog Number: 76176-044
Supplier: Argos Technologies



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Description:   Microfilter, .045 inch disc diameter x .031 inch thick x 192 inch total diameter, PEEK*
Catalog Number: 53501-360
Supplier: Upchurch Scientific



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Description:   0.5 micron,5 Per Pack.
Catalog Number: 97004-010
Supplier: Optimize



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Description:   UltraShield UHPLC PreColumn Filter, Porosity: 0.5 um frit, Inlet/Outlet: Female/Male 10-32, Universal fit, Pressure: 15,000 psi, Filter: 0.5 um or 0.2 um titanium frit in a stainless steel body with PEEK ferrule, Wrench Flat: 5/16 inch, Cost-effective protection
Catalog Number: 10853-742
Supplier: Restek



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Description:   Diba Chromatography Column Frit, 6.6 mm dia, 5 µm, PTFE
Catalog Number: 76176-368
Supplier: Argos Technologies



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Description:   Diba Chromatography Column Frit, 25 mm dia, 50 µm, PTFE
Catalog Number: 76176-022
Supplier: Argos Technologies



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Description:   Diba Chromatography Column Frit, 5 mm dia, 50 µm, PTFE
Catalog Number: 76176-366
Supplier: Argos Technologies



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Description:   With five 0.5um PEEK* Frits, Use with .025 OD MicroTight* Sleeves
Catalog Number: 53501-364
Supplier: Upchurch Scientific



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Description:   .46 inch disc diameter x .071 inch thick x .560 inch total diameter, PEEK*
Catalog Number: 35321-094
Supplier: Upchurch Scientific



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Description:   .750 inch disc diameter x .070 inch thickness x .880 inch total diameter, 316 stainless steel
Catalog Number: 53501-486
Supplier: Upchurch Scientific



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Description:   .062 inch disc diameter x .065 inch thick x .250 inch total diameter, PEEK*
Catalog Number: 21511-456
Supplier: Upchurch Scientific



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Description:   With 10-32 Threads for 1/16? OD Tubing, PEEK* Frit
Catalog Number: 53501-446
Supplier: Upchurch Scientific



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Description:   Frit, 10um Porosity, 0.750 inch disc diameter x.070 inch thickness x.880 inch total diameter, Material: 316 stainless steel, For use with standard 10-32 coned fittings and 1/16in tubing
Catalog Number: 21511-453
Supplier: Upchurch Scientific



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Description:   Diba Chromatography Column Frit, 6.6 mm dia, 10 µm, PTFE
Catalog Number: 76176-370
Supplier: Argos Technologies



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Description:   UltraShield UHPLC PreColumn Filter, Porosity: 0.2 um frit, Inlet/Outlet: Female/Male 10-32, Universal fit, Pressure: 15,000 psi, Filter: 0.5 um or 0.2 um titanium frit in a stainless steel body with PEEK ferrule, Wrench Flat: 5/16 inch, Cost-effective protection
Catalog Number: 10853-520
Supplier: Restek



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Description:   Diba Chromatography Column Frit, 10 mm dia, 25 µm, PE
Catalog Number: 76175-994
Supplier: Argos Technologies



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