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Paras Virani ¹, Rajanit Sojitra ², Bhadresh Savaj ², Hasumati Raj ², Vineet Jain ²

Affiliations
1 Gujarat Technological University, Gujarat, IN
2 Quality Assurance Department, Shree Dhanvantary Pharmacy College, Kim, Surat, IN

Abstract

A simple, accurate and precise spectroscopic method was developed for simultaneous estimation of Irbesartan and atorvastatin in synthetic mixture using Q absorption Ratio Method. In this spectroscopic method, 234.7 nm (as an isoabsorptive point) and 226 nm wavelengths (λmax of any of the two drugs) were selected for measurement of absorptivity. Both the drugs show linearity in a concentration range of 05-30 μg/ml at their respective λmax and at the isoabsorptive point. Accuracy, precision and recovery studies were done by QC samples covering lower, medium and high concentrations of the linearity range. The relative standard deviation for accuracy, precision studies were found to be within the acceptance range (<2%). The limit of determination was 0.365μg/ml and 0.0622μg/ml for Irbesartan and atorvastatin, respectively. The limit of quantification was 1.108μg/ml and 0.188μg/ml for Irbesartan and atorvastatin, respectively. Recovery of Irbesartan and atorvastatin were found to be 100.51% and 100.16% respectively confirming the accuracy of the proposed method. The proposed method is recommended for routine analysis since they are rapid, simple, accurate and also sensitive and specific by no heating and no organic solvent extraction.

Keywords

Irbesartan, Atorvastatin, Simultaneous Estimation, Q Absorption Ratio Method, Q Value Analysis Method.

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Paras Virani ¹, Rajanit Sojitra ², Bhadresh Savaj ², Hasumati Raj ², Vineet Jain ²

Affiliations
1 Gujarat Technological University, Gujarat, IN
2 Quality Assurance Department, Shree Dhanvantary Pharmacy College, Kim, Surat, IN

Abstract

The present manuscript describe simple, sensitive, rapid, accurate, precise and economical first derivative spectrophotometric method for the simultaneous determination of Irbesartan (IRB) and Atorvastatin (ATR) in synthetic mixture. The derivative spectrophotometric method was based on the determination of both the drugs at their respective zero crossing point (ZCP). The first order derivative spectra was obtained in methanol and the determinations were made at 225.20 nm (ZCP of Atorvastatin) for Irbesartan and 308.15 nm (ZCP of Irbesartan) for Atorvastatin. The linearity was obtained in the concentration range of succinate 5-30 μg/ml for Irbesartan and 5- 30 μg/ml for Atorvastatin Succinate. The mean recovery was 99.25 and 99.65% for Irbesartan and Atorvastatin succinate, respectively. The method was found to be simple, sensitive, accurate and precise and was applicable for the simultaneous determination of Irbesartan and Atorvastatin in synthetic mixture. The results of analysis have been validated statistically and by recovery studies. The proposed method is recommended for routine analysis since they are rapid, simple, accurate and also sensitive and specific by no heating and no organic solvent extraction.

Keywords

Irbesartan, Atorvastatin, Simultaneous Estimation,First Order Derivative, Spectroscopy.

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