Development, application and validation of RP-HPLC method for the simultaneous determination of butamirate citrate and its main degradation product in pharmaceutical dosage forms

2011 ◽  
Vol 3 (7) ◽  
pp. 1643
Author(s):  
Ahmed Mostafa ◽  
Alaa El-Gindy ◽  
Samy Emara
Author(s):  
Hemraj Sharma ◽  
Boya Madhuri ◽  
Yiragamreddy Padmanabha Reddy ◽  
Kondareddy Vinod Kumar ◽  
Nanda Kishor Bhatta ◽  
...  

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., 5μm) 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


2020 ◽  
Author(s):  
N. M. D. Akram ◽  
N. Madana Gopal ◽  
A. Balakrishna ◽  
N. Bakthavatchala Reddy ◽  
Grigory V. Zyryanov

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