DESCRIPTION
Concentrate strong cations such as quaternary ammonium compounds using Thermo Scientific™ Dionex™ SolEx™ WCX Polymer-Based SPE Cartridge. The WCX stationary phase is comprised of a medium-surface-area divinylbenzene resin particle grafted with carboxylate functional groups. The phase is conditioned at pH 8 or higher, targets can be eluted by protonating the stationary phase to carboxylic acid (neutral), thus eliminating the ion-exchange retention mechanism. The cartridge is designed for use with the Thermo Scientific™ Dionex™ AutoTrace™ 280 SPE system or other SPE instrumentation and vacuum manifolds.
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