OmniPac Columns

Multimode separations are those in which more than one separation mechanism is in effect during the analysis. The advantage is that for analytes that interact with the various mechanisms, the extra interaction provides greater opportunity for separation. The OmniPac^® columns combine the ion-exchange mechanism with reversed-phase separation. The four columns in this product line include two anion-exchange columns and two cation-exchange columns. One column is uniquely ion-exchange and provides you with the means to develop a method and understand the ion-exchange interactions. The second column incorporates the reversed-phase characteristics and can be used to refine the separation.

OmniPac PAX-100 Anion-Exchange Column for the Analysis of Hydrophobic and Halogenated Anions

The OmniPac^® PAX-100 column is a microporous, solvent-compatible, high-capacity, anion-exchange column designed for the separation of hydrophobic and halogenated anions. The OmniPac PAX-100 column can be used to separate hydrophobic anionic analytes such as larger organic acids, including alkylbenzene sulfonates, aromatic acids, barbiturates, polyphosphates, inositol phosphates, thiocyanate, thiosulfate, and iodate.

OmniPac PAX-500 Multimode Column

The OmniPac^® PAX-500 column is a macroporous, low-capacity, solvent-compatible column designed for the simultaneous separation of anionic and neutral species in a single run. This column combines anion-exchange and polymeric reversed-phase retention mechanisms.

OmniPac PCX-100 Cation-Exchange Column for the Separation of Low-Molecular-Weight Species

The OmniPac^® PCX-100 column is a microporous, solvent-compatible, high-capacity, cation-exchange column designed for the separation of low-molecular-weight hydrophobic cations. The OmniPac PCX-100 column can be used to separate hydrophobic cationic analytes such as amines, anilines, antidepressants, drugs, and metabolites (such as methotrexate and folic acid).

OmniPac PCX-500 Mixed-Mode Column

The OmniPac^® PCX-500 column is a macroporous, high-capacity, solvent-compatible column designed for the simultaneous separation of cationic and neutral species in a single run. This column combines cation-exchange and polymeric reversed-phase retention mechanisms.