spectrofluorimetric method for determination of some angiotensin ii receptor antagonists

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ID: 250023
2012
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Abstract
A simple, rapid, accurate and highly sensitive spectrofluorimetric method has been developed for determination of some angiotensin II receptor antagonists (AIIRA's), namely Losartan potassium (Los-K), Irbesartan (Irb), Valsartan (Val) and Candesartan cilexetil (Cand) in pure forms as well as in their pharmaceutical dosage forms. All the variables affecting the relative fluorescence intensity (RFI) were studied and optimized. Under the optimum conditions, linear relationships with good correlation coefficients (0.9982–0.9991) were obtained over the concentration range from 0.006 μg/mL to 1.7 μg/mL. Good accuracy and precision were successfully obtained for the analysis of tablets containing each drug alone or combined with hydrochlorothiazide (HCTZ) without interferences from the co-formulated HCTZ or the additives commonly present in tablets. Keywords: Angiotensin II receptor antagonists, Spectrofluorimetry, Determination
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Authors ;Salwa R. El-Shaboury;Samiha A. Hussein;Niveen A. Mohamed;Mohamed M. El-Sutohy
Journal Frontiers in plant science
Year 2012
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