Extractive spectrophotometric determinations of some phenothiazine derivatives in pharmaceutical preparations |
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| Authors: | Bhongade S L Kasture A V |
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| Institution: | Dept. of Pharmaceutical Sciences, Nagpur University, University Campus, Nagpur 440 010, India. |
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| Abstract: | Two sensitive methods for the determination of phenothiazine derivatives based on the formation of coloured salts of these drugs formed with Brilliant Blue or Orange-II in the presence of 0.1 M HCl are described. The ion pair salts formed are quantitatively extracted into chloroform and the dried chloroform solutions analyzed using spectrophotometry. |
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