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Abstract

DEVELOPMENT AND VALIDATION OF RP-HPLC METHOD FOR ESTIMATION OF ANTI- HYPOTHYROIDISM DRUG IN CAPSULE DOSAGE FORM

Monali Raju Bansode*

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Abstract

A simple, accurate, sensitive and precise Reverse Phase-High Performance Liquid Chromatographic assay method for estimation of Levothyroxine sodium in dosage form was successfully developed. The chromatographic separation was performed on Welch Ultisil XBCN, 150 x 4.6 mm, 5μm. column. The mobile phase consists of 0.05% OPA Buffer solution, and Acetonitrile in the ratio of 72:28, v/v. Mobile phase was delivered at a flow rate of 1.0 ml/min. Samples were injected 50 μL the column temperature was kept at 40 0C and sample temperature 150C. The wavelength 221 nm were selected for the evaluation of the chromatogram. The retention time of the drug was found to be 3.7 min. The developed method was found to be linear in a concentration range of 5-15 μg/ml of the drug (r2= 0.999). The low value of % RSD indicates reproducibility of the method. Thus this method can be used for routine analysis of pomalidomide in formulation and to check the stability of bulk samples.

Keywords: Levothyroxine sodium, RP-HPLC, Method validation, Stability indicating assay method.


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