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Grade GF/F Glass Microfiber Filter Binder Free, circle, 55 mm Grade GF/F is a highefficiency filter which retains fine particles down to 0.7 µm. Unlike membrane filters with a comparable retention value, it has a very rapid flow rate and an extremely high loading capacity. Because of the tight specification of 0.6 µm–0.8 µm particle retention and pure borosilicate glass structure, GF/F is the material upon which the EPA Method TCLP 1311 for Toxicity Characteristic Leaching Procedure was developed. It remains today the filter of choice. Recommended for DNA binding and purification. Very effective in filtering finely precipitated proteins, GF/F can be used in conjunction with GF/D as a prefilter for the successful clarification of extremely ‘difficult’ biochemical solutions and fluids, and nucleic acids. This filter is available in the FilterCup and Disposable Filter Funnel format. Grade GF/F: 0.7 µm

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