Cellulose Ion Exchange Papers. Whatman
Whatman / Schleicher & Schuell (GE Healthcare)
Whatman Ion Exchange Papers offer simultaneous development of multiple samples on the same sheet under identical conditions. You can also perform sequential development of the same samples with different solvents and/or different concentrations of the same solvent. Suitable for two-dimensional chromatography (change in direction of the solvent front) with possible improved resolution. Grades available are; DE81: A thin (0.20 mm) DEAE cellulose paper-a weakly basic anion exchanger with diethylaminoethyl functional groups. The ion exchange capacity is 1.7 µeq/cm2 and flow rate is 95 mm/30 min. For use with reverse transcriptase assays and DNA polymerase. P81: A thin (0.23 mm) cellulose phosphate paper. Strong cation exchanger of high capacity. Ion exchange capacity is 18.0 µeq/cm2 and the flow rate is 125 mm/30 min. For use with protein kinase assay with peptide substrates. SG81: A unique paper (0.27 mm thick) combining cellulose and large pore silica gel. Suitable for separations in which both partition and adsorption are important, including the separation of phospholipids, steroids, phenols and dyes. Flow rate is 110 mm/30 min.
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