Microbiological assay for lomefloxacin in coated tablets |
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Authors: | Gomes Greici Cristiani Salgado Hérida Regina Nunes |
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Institution: | Universidade Estadual Paulista, Faculdade de Ciências Farmacêuticas, UNESP, Rod. Araraquara-Jaú, km 1, CEP 14801-902, Araraquara, SP, Brazil. |
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Abstract: | The validation of a microbiological assay, applying cylinder plate method for determination of the activity of lomefloxacin in coated tablets is described. Using a strain of Bacillus subtilis ATCC 9372 as the test organism, lomefloxacin was measured in concentrations ranging from 2.0 to 8.0 microg/mL. The method validation showed that it is linear (r = 0.9999), precise (relative standard deviation = 1.15%), and accurate (it measured the added quantities). The excipients did not interfere in the determination. It was concluded that the microbiological assay is satisfactory for quantitation of lomeflox tablets. |
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