HPLC METHOD FOR SIMULTANEOUS DETERMINATION OF METFORMIN AND SITAGLIPTIN IN PHARMACEUTICAL DOSAGE FORMS AND ITS APPLICATIONS TO DISSOLUTION STUDY
DOI:
https://doi.org/10.32553/ijmbs.v3i7.406Keywords:
RP-HPLC, Metformin, Sitagliptin, Dissolution studyAbstract
A novel approach was used to develop and validate a rapid, specific, accurate and precise Reverse phase High performance liquid chromatographic (RP-HPLC) method for the simultaneous determination of Metformin and Sitagliptin in pharmaceutical dosage forms and its applications to dissolution study. The chromatographic separation was carried out on a C8 (250mm X 4.6 mm i.d., 5?m) column with a mobile phase of 40 Acetonitrile: 60 Phosphate Buffer (pH 6.8), using UV detector at 257 nm at 1ml min-1 flow rate. The retention time for Metformin was 2.11 minutes and 5.30 minutes for Sitagliptin. The Linearity for Metformin was found to be 10-80 µg ml-1 with R2 value of 0.9998 and for Sitagliptin 1-8 µg ml-1 with R2 value of 0.9976. Dissolution study of both for Metformin and Sitagliptin was carried, Percentage of drug release was established which was found to be 96.23% and 102.64% respectively, in the period of 50 minutes.
Keywords: RP-HPLC, Metformin, Sitagliptin, Dissolution study