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Asian Journal of Pharmaceutical Analysis
Year : 2017, Volume : 7, Issue : 2
First page : ( 79) Last page : ( 83)
Print ISSN : 2231-5667. Online ISSN : 2231-5675.
Article DOI : 10.5958/2231-5675.2017.00013.8

Simultaneous Spectrophotometric Determination of Linagliptin and Metformin Hydrochloride in Combined Tablet Dosage Form.

Gajare Saroj1,*, Prof. Zalte Amar2, Dr. Saudagar Ravindra B.3

1Department of Quality Assurance, R.G. Sapkal College of Pharmacy, Anjaneri, Nasik (Dt)

2Department of Pharmaceutics, R.G. Sapkal College of Pharmacy, Anjaneri, Nasik (Dt)

3Department of Pharmaceutical Sciences, R.G. Sapkal College of Pharmacy, Anjaneri, Nasik (Dt)

*Corresponding Author E-mail: sarojgajare19@gmail.com

Online published on 18 September, 2017.


Simple, precise and economical UV Spectrophotometric methods have been developed for the simultaneous estimation of Linagliptin and Metformin in bulk and pharmaceutical dosage forms. The simultaneous equation (Vierodt's Method), which is based on measurement of absorption at 227nm and 232nm i.e. λmax of Linagliptin and Metformin respectively. Linearity was observed in the concentration range of 1–11μg/ml for Linagliptin and 3–13 μg/ml. The accuracy of methods was assessed by recovery studies and was found to be withinrange of 9899% for both Linagliptin and Metformin. The developed methods were validated with respect tolinearity, accuracy (recovery), and precision. The method can be employed for estimation of pharmaceuticalformulations with no interference from any other excipients and diluents. The results were validated statistically as per ICH Q2 R1 guidelines and were found to be satisfactory.



Linagliptin, Metformin Hydrochloride, ICH, UV-Spectroscopic, Accuracy, Precision.


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