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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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Catalog Number: BJ9448
Supplier: Honeywell Research Chemicals


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Catalog Number: BJ9438
Supplier: Honeywell Research Chemicals


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Catalog Number: BJ9454
Supplier: Honeywell Research Chemicals


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Description:   2 micron. Color: green. Hand-tight, automatically adjustable in-line filter to extend life of analytical columns. Perfect zero-dead-volume connections. Disposable and holder-free.
Catalog Number: 77100-054
Supplier: Optimize



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Description:   .094 inch disc diameter x .065 inch thick x .250 inch total diameter, PEEK*
Catalog Number: 21001-314
Supplier: Upchurch Scientific



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Description:   Diba Chromatography Column Frit, 10 mm dia, 20 µm, PTFE
Catalog Number: 76175-992
Supplier: Argos Technologies



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Description:   0.5um, 5/pk
Catalog Number: 97056-520
Supplier: Optimize



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Description:   0.5 Micron, 180Um Id Hand-Tight, Direct Connect, Automatically Adjustable Pre Column Filter To Extend Life Of Narrow Bore Analytical Columns. Perfect Zero-Dead-Volume Connections. Disposable And Holder-Free.
Catalog Number: 89042-068
Supplier: Optimize



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Description:   .125 inch disc diameter x .065 inch thick x .250 inch total diameter, PEEK*
Catalog Number: 53501-220
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:   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:   With 10-32 Threads for 1/16? OD Tubing, PEEK* Frit
Catalog Number: 53501-446
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:   .188 inch disc diameter x .067 inch thick x .250 inch total diameter, PEEK*
Catalog Number: 53501-222
Supplier: Upchurch Scientific



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