Ahlstrom Grade 320 is a super thick grade of 100% cotton chromatography paper with a smooth and uniform texture. It offers extremely high flow and is recommended both for electrophoresis of large molecules and as a blotter to complete the blotting sandwich in gel transfer applications. Thickness: 2.48 mm. Absorption rate: 240 mm / 30 min. Ahlstrom manufactures a complete line of high quality chromatography electrophoresis and blotting papers for use in gel transfer applications and chromatography techniques. These uniform smooth white sheets are the high purity high quality and high value standard. They are used in nucleic acid research such as Southern Northern and Western blots electroblotting and electrophoresis. Ahlstrom chromatography electrophoresis and blotting papers are made from high purity and 100% FDA compliant alpha cotton cellulose using ultra-pure RO water and contain no additives that could cause increased backgrounds or other interference in detection systems. Ahlstrom Laboratory Filter Catalog About Ahlstrom Filter Grades (pdf)

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