TSKgel OApak-A columns are packed with porous hydrophilic polymer beads which have been chemically modified with a weak cation exchanger. They are optimized for the separation and analysis of organic acids by an ion-exclusion mechanism.

This column is to be used in conjunction with the TSKgel OApak-P guard column which has a strong cation exchanger for the removal of dissociated strong acids under the isocratic eluent conditions of 0.75mM H₂SO₄.

Applications include: organic acids in fruit juices, wine, beer, coffee, and salt solutions. Consult the HPLC Application Database for more information.

Product Attributes:

Matrix: hydrophilic polymer  Particle size (mean): 5µm  Pore size (mean): ND  Functional group: proprietary  Counter ion: H+  pH range: 2.0 - 12.0  Small ion capacity: >1.5meq/mL

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