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. Controlled absorption Uniform absorption Consistency across the sheet Lot-to-lot consistency High purity, no sizing or fillers E x cellent wet-strength and handling No hard spots or density variations No airborne fibers Custom cut Bulk packaging Ahlstrom 238: 0.34 mm ? 140 mm /30 min. This medium thick paper is recommended for general chromatography applications. Ahlstrom 238 is also ideal for use as wicks in protein or nucleic acid blotting to provide a uniform flow of buffer through the gel to the transfer membrane in a blotting sandwich. This is our most widely used blotting paper. Ahlstrom 238 is also suited for electrophoresis and the separation of inorganic compounds and for use in removing gels from glass supports. Blotting Paper 33 x 43 cm This listing is for Pack of 100
Ahlstrom offers a full range of glass microfiber filters manufactured from 100% pure borosilicate glass. Because of their intrinsic properties, glass microfiber filters have wide applications in many areas of laboratory analysis, especially when fine filtration and high loading capacity is required. Applications for Ahlstrom glass microfiber filters include environmental analysis for water, wastewater, testing of soils, air pollution and monitoring, research and process biochemistry, and gravimetric analysis involving ignition of samples. Ahlstrom glass microfiber filters are also found in the filtration of hot gases and liquids, and in pre-filtration. Laboratory analysis 100% pure borosilicate glass Rapid flow rate Fine particle retention 0.7m -; 3.1 m High loading capacity Chemical and thermal resistance (up to 500C) Long shelf life Brilliant white color reflecting more than 96% of visible light Custom cut Standard Glass Microfiber Filters Standard glass microfiber filters contain no binders or other additives that may cause interference to sensitive enzymatic or other chemical reactions. The unique characteristics of glass microfiber filters make its use particularly advantageous to laboratory filtration by enabling fast filtration of large volumes and difficult solutions without premature clogging. Ahlstrom 131: 1.0m -; Medium Speed This standard grade found in many environmental applications offers slightly more retention than Ahlstrom 111 with slightly lower filtration speed and loading capacity. Ahlstrom 131 is recommended for the collection of suspended solids in potable water and in industrial wastes. In biochemical tests, Ahlstrom 131 is suited for cell harvesting, liquid scintillation countin
Ahlstrom offers a full range of glass microfiber filters manufactured from 100% pure borosilicate glass. Because of their intrinsic properties, glass microfiber filters have wide applications in many areas of laboratory analysis, especially when fine filtration and high loading capacity is required. Applications for Ahlstrom glass microfiber filters include environmental analysis for water, wastewater, testing of soils, air pollution and monitoring, research and process biochemistry, and gravimetric analysis involving ignition of samples. Ahlstrom glass microfiber filters are also found in the filtration of hot gases and liquids, and in pre-filtration. Laboratory analysis 100% pure borosilicate glass Rapid flow rate Fine particle retention 0.7m -; 3.1 m High loading capacity Chemical and thermal resistance (up to 500C) Long shelf life Brilliant white color reflecting more than 96% of visible light Custom cut Standard Glass Microfiber Filters Standard glass microfiber filters contain no binders or other additives that may cause interference to sensitive enzymatic or other chemical reactions. The unique characteristics of glass microfiber filters make its use particularly advantageous to laboratory filtration by enabling fast filtration of large volumes and difficult solutions without premature clogging. Ahlstrom 161: 1.1m -; Medium Speed This popular grade offers finer particle retention and higher flow rate than traditional analytical filter papers. Ahlstrom 161 is used in general laboratory applications, cell harvesting, liquid scintillation counting, and in the monitoring of air and water pollution. Ahlstrom 161 is generally recommended for water pollution monitoring techniques for total suspended sol