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- W2990959242 abstract "The manuscript describes two fluorimetric methods for the determination of some antiemetic drugs namely granisetron HCl, ondansetron HCl and tropisetron HCl, used in the management of nausea and vomiting induced by cytotoxic chemotherapy and radiotherapy. Granisetron HCl solution exhibits a native fluorescence, which can be applied for its determination at 365 nm upon excitation at 305 nm. The method was applied for the determination of granisetron HCl in drug substance, drug product as well as in presence of its acid induced degradation products. The quantum yield was calculated. The second proposed method is based on measuring the quenching effect induced by ondansetron HCl or tropisetron HCl on the fluorescence intensity of cerrous ammonium sulphate at λem 348 nm upon excitation at 250 nm in acidic medium. The analysis of quenching data showed that quenching of cerrous ammonium sulphate induced by ondansetron HCl or tropisetron HCl is mainly through dynamic quenching. Various variables affecting fluorescence response were studied and optimized. The obtained results were found to be statistically agreed with those obtained from the official or reported ones. Moreover, the validity of the methods was assessed according to ICH guidelines." @default.
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- W2990959242 date "2020-03-01" @default.
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- W2990959242 title "Determination of some antiemetic drugs through its native fluorescence or fluorescence quenching of cerrous ammonium sulphate" @default.
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- W2990959242 doi "https://doi.org/10.1016/j.saa.2019.117852" @default.
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