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Original Articles Open Access
A simple, selective, precise and stability indicating High Performance Liquid Chromatographic (HPLC) method of analysis of Terlipressin in pure and pharmaceutical dosage form was developed and validated. The chromatographic conditions comprised of a reversed-phase C18 column (250 x 4.6 mm), 5 μ with a mobile phase consisting of a mixture of Acetonitrilemonobasic potassium phosphate solution (35:65v/v) and pH adjusted to 3.5. Flow rate was 1.5 mL / min. Detection was carried out at 280 nm. The retention time of Terlipressin was 10.05 min. Terlipressin was subjected to acid and alkali hydrolysis, oxidation, photochemical degradation and thermal degradation. The linear regression analysis data for the calibration plots showed good linear relationship in the concentration range 2-12μg/ml. The value of correlation coefficient, slope and intercept were, 0.9995, 1848.2and 62.786, respectively. The method was successfully validated in accordance to ICH guidelines acceptance criteria for specificity, linearity, precision, recovery, ruggedness and robustness. The drug undergoes degradation under acidic, basic, photochemical and thermal degradation conditions. All the peaks of degraded product were resolved from the active pharmaceutical ingredient with significantly different retention time. As the method could effectively separate the drug from its degradation product, it can be employed as a stability-indicating one.
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Author(s): Praveen Kumar Mand Sreeramulu J
Terlipressin, RP-HPLC, degradation studies.