A VALIDATED STABILITY INDICATING RP-HPLC METHOD FOR DETERMINATION OF AZELNIDIPINE AND ITS IMPURITIES IN PHARMACEUTICAL FORMULATION
Journal: Indian Drugs (Vol.57, No. 08)Publication Date: 2020-08-28
Authors : Pavani Peddi; S. L. Tulasi; N.Usha Rani; T. Raja Rajeswari;
Page : 70-76
Keywords : *For Correspondence E-mail: pavanipeddi7@gmail.com;
Abstract
A novel simple, rapid, sensitive and stability-indicating RP-HPLC method was developed and validated for the determination of azelnidipine (ALDP) and its impurities 1 and 2. Resolution of drug, its potential impurities and degradation products were achieved by RP-HPLC on was performed on Prontosil ODS C18 column (250 mm x 4.6 mm, 5µ) using a mobile phase consisting of methanol and 0.1M sodium acetate 40: 60 (v/v) at a flow rate of 1 ml/min and 231 nm of UV detector. Validation of the method was performed along with formulation analysis and forced degradation studies. The calibration curves of ALDP were linear over a concentration range of 50-300 µg/mL. The method was rapid with a retention time of the impurity 2, impurity and ALDP observed at 3.60, 5.15 and 6.90 min, respectively. The method was applied for the impurities determination in drug tablets and for degradation products determination in a stability study of ALDP. The impurity content in the tablets was quantified as 0.1% of total drug. The method can also be used for rapid and accurate quantification of ALDP in its tablets during stability testing.
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