Interaction of ofloxacin-Al(III) pH dependent complexes with the water|1,2-dichloroethane interface

  • Azcurra A
  • Yudi L
  • Baruzzi A
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Abstract

The transfer of Al(III)-ofloxacin (OFX) complexes across the water|1,2-dichloroethane interface was investigated using cyclic voltammetry and potential steps followed by a negative scan. The electrochemical response was determined by the pH of the solutions analyzed. At pH < 3 the main species in solution is HOFX+whose diffusion controlled transfer is observed. At pH≫pKa2highly hydroxylated species of Al(III) become important, inhibiting the complex formation and, as a result, a profile similar to that of the base solutions is obtained. In the range 3

Author-supplied keywords

  • Adsorption at ITIES
  • Liquid|liquid interfaces
  • Ofloxacin-Al complexes

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