Development and Validation of Ultraviolet and Reverse Phase-high Performance Liquid Chromatographic Method for Estimation of Cilnidipine

Aim: The current experiment was to develop and validate a straight forward RP-HPLC methodology for the determination of Cilnidipine.

Methodology: UV spectroscopy was used to estimate Cilnidipine. Action separation of Cilnidipine was achieved by employing a C18 column. Mobile phase combination of methanol: water (90:10 v/v) was tense at the flow of 1 ml/min. Detection was performed at 241 nm. Validation parameters were evaluated in line with the International conference on harmonization (ICH) Q2R1 guidelines.

Results: The standardization curve was linear within the varying concentration of 2-10 mg/ml for Cilnidipine with parametric statistic (r2) equal to 0.999. The tactic was found to be accurate (101.66% recovery), precise (intraday, 1.65 and inter day, 1.38) and robust (% RSD was calculated to be 0.66, 0.58 and 0.81 for variation in mobile phase composition, wave length and flow velocity respectively) for the analysis of Cilnidipine.

Conclusion: The developed method has passed all the validation tests and can be successfully applied to estimate the presence of Cilnidipine in bulk as well as in pharmaceutical formulations.