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Spectrofluorometric and spectrophotometric bivariate methods were developed for quantitative of Propranolol and Hydrochlorothiazide in drug tablets in aqueous medium. The methods were tested according to ICH guidelines for linearity, recovery, and specificity and were found accurate, precise, sensitive, and free from interferences. The linearity was established over the ranges 0.025–0.30 and 0.010–0.20 mg/L in the first method, and 1.0–20.0 and 5.0–25.0 mg/L in second method, for PRO and HCT, respectively. The excitation and emission wavelengths were 260, 345 and 270, 415 nm, for PRO and HCT in the first method, respectively. The recoveries were higher than 95% for both methods. Additionally, the results were statistically compared to that of standard chromatographic methods and showed that no significant difference among the methods regarding both accuracy and precision. Thus, the methods were successfully applied to quantitation of PRO and HCT in combined formulations. The proposed methods are reliable, simple, sensitive, and adaptable and could effectively be an alternative method to HPLC.
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453-463
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2020-06-29
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author
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Publication order reference
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bwmeta1.element.doi-10_32383_appdr_123019
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