DEVELOPMENT AND VALIDATION OF CILNIDIPINE AND METOPROLOL SUCCINATE IN BULK AND MARKETED FORMULATIONS BY UV SPECTROSCOPIC METHOD
Keerthana Shetty, Neeladri Srinivasulu, Yegnoor Anand Kumar*, Madhusri Chagi and Pooja Polkal
ABSTRACT
A specific, accurate, precise, robust, and cost-effective UV method was developed and validated for quantitative analysis of Cilnidipine (CLD) and Metoprolol Succinate (MTS) in alone and marketed dosage forms using Medium I (Methanol: Phosphate buffer pH 6.8 (3:1) as solvent blend. The λ max for CLD and MTS was found to be 242 nm and 223 nm respectively. Linearity was observed in the concentration range of 1-10 μg/ml for Cilnidipine and 1-10 μg/ml for Metoprolol Succinate. The accuracy of method was assessed by recovery studies and was found to be within acceptable range for both CLD and MTS. The developed Medium I was validated with respect to linearity, accuracy (recovery) and precision. The results were validated statistically as per ICH guidelines and were found to be satisfactory. The Medium I can be successfully applied for the determination of CLD and MTS in alone and marketed samples.
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