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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:   MICRO FILTER FOR 1/16"TUBING, W/.5um PEEK FRITS (1).
Catalog Number: 53501-420
Supplier: Upchurch Scientific



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Description:   Diba Chromatography Column Frit, 15 mm dia, 20 µm, PTFE
Catalog Number: 76176-004
Supplier: Argos Technologies



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Description:   0.2 micron,10 Per Pack.
Catalog Number: 97004-016
Supplier: Optimize



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Description:   Diba Chromatography Column Frit, 10 mm dia, 5 µm, PTFE
Catalog Number: 76175-988
Supplier: Argos Technologies



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Catalog Number: BJ9434
Supplier: Honeywell Research Chemicals


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Description:   For 1/8 inch OD tubing, PEEK* with stainless steel ring, black (10 Pk)
Catalog Number: 53521-142
Supplier: Upchurch Scientific



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Description:   With five 0.5um Stainless Steel Frits, Use with 1/16 OD Tubing
Catalog Number: 53501-352
Supplier: Upchurch Scientific



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Description:   For 1/16 inch OD tubing, with stainless steel ring, PEEK*, black
Catalog Number: 53501-454
Supplier: Upchurch Scientific



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Description:   .038 inch disc diameter x .031 inch thick x .192 inch total diameter, 316 stainless steel
Catalog Number: 53501-346
Supplier: Upchurch Scientific



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Description:   .094 inch disc diameter x .065 inch thick x .250 inch total diameter, PEEK*
Catalog Number: 53501-218
Supplier: Upchurch Scientific



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Description:   .094 inch disc diameter x .062 inch thickness x .250 inch total diameter, 316 stainless steel"
Catalog Number: 21511-428
Supplier: Upchurch Scientific



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Description:   .125 inch disc diameter x . 077 inch thick x .250 inch total diameter, PEEK*
Catalog Number: 53501-332
Supplier: Upchurch Scientific



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Description:   316 Stainless Steel
Catalog Number: 21511-448
Supplier: Upchurch Scientific



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Description:   Frit for 12 mL cartridge
Catalog Number: 89213-834
Supplier: Agela 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: 10853-594
Supplier: Restek



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Description:   For 1/8 inch OD tubing, PEEK* with stainless steel Ring, Natural
Catalog Number: 53501-458
Supplier: Upchurch Scientific



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