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Optigel Series (Polymer based)
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VDS Optigel CarbEx II Ca++ Series
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Under the name Optigel, VDS optilab offers various ion-exchange separation phases on a polymer basis. The matrix used here is a polystyrene-divinylbenzene network, which is modified in accordance with the desired function. This makes it possible, in contrast to silica gel phases, to be able to work over a very wide pH range without destroying the phase itself. However, when using polymer phases, care must be taken that these are not subjected to a pressure higher than 100 bar.
The Optigel CarbEx II Ca++ cation exchangers have sulfonic acid groups bonded to the polystyrene-divinylbenzene matrix and Ca2+ as counterion.