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Number AL-142

Ion-Exchange Resins and
Related Polymeric Adsorbents
 

 

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III. SEPHADEX® PRODUCTS

These highly specialized gelfiltration and chromatographic media are composed of macroscopic beads synthetically derived from the polysaccharide, dextran. The organic chains are cross-linked to give a threedimensional network having functional ionic groups attached by ether linkages to glucose units of the polysaccharide chains.

Available forms include anion and cation exchangers, as well as gelfiltration resins, with varying degrees of porosity; bead sizes fall in discrete ranges between 20 and 300µ. See Tables XII and XIII.

Table XII
Catalog Number Description Functionality Bead size (µ)
Sephadex Ion-Exchange Resins
A25120 Sephadex-DEAE A-25 2-(diethylamino)ethyl 40-120
A50120 Sephadex-DEAE A-50 2-(diethylamino)ethyl 40-120
C25120 Sephadex-CM C-25 carboxymethyl 40-120
C50120 Sephadex-CM C-50 carboxymethyl 40-120
Q25120 Sephadex-QAE A-25 quaternary aminoethyl 40-120
Q50120 Sephadex-QAE A-50 quaternary aminoethyl 40-120
SPC25120 Sephadex-SP C-25 sulfopropyl 40-120
SPC50120 Sephadex-SP C-50 sulfopropyl 40-120

 

Table XIII
Catalog Number Description Bead size (µ)
Sephadex Gel-Filtration Resins
S5772 Sephadex® G-25 20-50
S5897 Sephadex® G-50 20-80
S6022 Sephadex® G-50 50-150
S6147 Sephadex® G-100 40-120

 


 

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  Merrifield Peptide Resins | Polyethylenimine-Based Products | Polyamide Resins