High-performance liquid chromatography of some bases and nucleosides on alkylphosphonate-modified magnesia-zirconia column

The high-performance liquid chromatographic behavior of some bases and nucl eosides was studied on a new reversed-phase stationary phase, alkylphosphon ate-modified magnesia-zirconia. The effect of mobile phase variable such as methanol content, ionic strength and pH on their behavior was investigated . It was found that the retention behavior of the bases and nucleosides on the new stationary phase is similar to that on ODS stationary phase. The re tention mechanism on the new stationary phase was also discussed. The separ ation of some bases and nucleosides was accomplished on the new stationary phase.