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- W2106937354 abstract "Abstract Background The construction and electrochemical response characteristics of Poly (vinyl chloride) membrane sensors for moxifloxacin HCl (MOX) are described. The sensing membranes incorporate ion association complexes of moxifloxacin cation and sodium tetraphenyl borate (NaTPB) (sensor 1), phosphomolybdic acid (PMA) (sensor 2) or phosphotungstic acid (PTA) (sensor 3) as electroactive materials. Results The sensors display a fast, stable and near-Nernstian response over a relative wide moxifloxacin concentration range (1 × 10 -2 - 4.0 × 10 -6 , 1 × 10 -2 - 5.0 × 10 -6 , 1 × 10 -2 - 5.0 × 10 -6 M), with detection limits of 3 × 10 -6 , 4 × 10 -6 and 4.0 × 10 -6 M for sensor 1, 2 and 3, respectively over a pH range of 6.0 - 9.0. The sensors show good discrimination of moxifloxacin from several inorganic and organic compounds. The direct determination of 400 μg/ml of moxifloxacin show an average recovery of 98.5, 99.1 and 98.6% and a mean relative standard deviation of 1.8, 1.6 and 1.8% for sensors 1, 2 and 3 respectively. Conclusions The proposed sensors have been applied for direct determination of moxifloxacin in some pharmaceutical preparations. The results obtained by determination of moxifloxacin in tablets using the proposed sensors are comparable favorably with those obtained using the US Pharmacopeia method. The sensors have been used as indicator electrodes for potentiometric titration of moxifloxacin." @default.
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- W2106937354 date "2014-09-17" @default.
- W2106937354 modified "2023-09-24" @default.
- W2106937354 title "Potentiometric determination of moxifloxacin in some pharmaceutical formulation using PVC membrane sensors" @default.
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- W2106937354 doi "https://doi.org/10.1186/s13065-014-0059-y" @default.
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