Asian Journal of Research in Chemistry

A. S. Bhadoriya ¹, S. S. Padekar ¹, V. D. Patil ¹, S. N. Shinde ¹, V. P. Choudhari ¹, B. S. Kuchekar ¹

Affiliations
1 Deparment of Pharmaceutical Analysis and Quality Assurance, MAEER’s Maharashtra Institute of Pharmacy, Kothrud, Pune-411038, IN

Abstract

A simple, economical, precise and accurate ratio spectra derivative spectrophotometric method for Aspirin (ASP), Atenolol (ATN), and Amlodipine besylate (AML) ternary combination on laboratory prepared tablet formulation has been developed. The method is based on obtaining first derivative of ratio spectra and measuring amplitude at selected wavelength. The derivative amplitudes at 312.5 nm, 315.5 nm and 347.0 nm were selected for measuring the response of Aspirin (ASP), Atenolol (ATN), and Amlodipine besylate (AML), respectively. Beer’s law is obeyed in the concentration range of 20-100 μg ml^-1 for ASP and 10-50 μg ml^-1 for ATN and 1-5 μg ml^-1 AML. The % assay was found to be in the range 98.0-101.0% for ASP and 98.91-101.72% for ATN and 98.71-101.2% for AML by the proposed method. The method was validated with respect to linearity, precision and accuracy. Recovery was found in the range of 98.72-100.64% for ASP and 98.45-101.21% for ATN and 98.32-101.12% for AML.

Keywords

Aspirin, Amlodipine, Atenolol, Ratio Spectra, First Derivative.

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A. R. Chabukswar ¹, S. N. Shinde ¹, B. S. Kuchekar ¹, S. C. Jagdale ¹, P. D. Lokhande ², V. P. Choudhari ¹, K. D. Ingale ¹

Affiliations
1 MAEER’S Maharashtra Institute of Pharmacy, S. No. 124, MIT Campus, Paud Road, Kothrud, Pune-411038, IN
2 Department of Chemistry, University of Pune, Ganeshkhind Road, Pune-411007, IN

Abstract

Simultaneous determination of Irbesartan (IRBE) and Hydrochlorothiazide (HTZ) in combined tablet dosage form has been developed by ratio spectra derivative and absorption correction spectrophotometry method. The amplitudes at 252.6 nm and 230 nm in the first derivative of the ratio spectra method were selected to determine IRBE and HTZ respectively and the second method was based on the absorption correction method in which IRBE and HTZ exhibit λ_max at 244 nm and 275.02 nm, respectively in 0.1 N HCL. HTZ has some interference due to IRBE at 275.02 nm, while HTZ do not show any absorption at 244 nm. The % assay for commercial formulations was found to be in the range 98.29-99.80 for IRBE and 98.91-100.10% for HTZ by the proposed methods, for both the formulations. Recovery was found in the range of 98.11-100.08% for IRBE and 98.54-99.29% for HTZ by ratio derivative method and 98.59-99.56% for IRBE and 99.33-100.12% for HTZ by absorbance correction method for both the Formulations. The methods were validated and found to be linear, precise and accurate, as per ICH guidelines. Absorbance correction method was applied for dissolution studies and drug release pattern was evaluated.

Keywords

Irbesartan and Hydrochlorothiazide, Ratio Derivative, Absorption Correction, Dissolution.

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