Impurity limit test of raw material of ciprofloxacin by high performance capillary electrophoresis / 第二军医大学学报

Objective: To develop a high performance capillary electrophoresis(HPCE) method for the impurity limit test of raw material of ciprofloxacin. Methods: An optimal method was established by studying on pH value, sampling time and other electrophoretic conditions. Results: The RSD of migration time was 0.23% and of the peak area was 2.49%. The limit of detection was 1.21 ?mol/L. The impurity profile and content was consistent with the dilution of sample concentration. Conclusion: HPCE method proves to be suitable for impurity limit test of raw material of ciprofloxacin. [