Influence of Mobile Phase Composition on the Retention Behavior of Hamilton Anion Resolution and Fast Columns

In this study two new anion exchange columns from Hamilton for high resolution and fast analysis have been tested with several carbonate-bicarbonate buffers. The dependence of the retention times on the composition of the mobile phase is shown. It was found that both columns deliver a good resolution and narrow sample peaks for all commonly used buffer compositions. In addition, the variation of the eluent strength may be applied for additional improvement of the retention times of especially the late eluting anions.