Paper electrophoretic technique in the study of beryllium(II) / cobalt(II) - proline binary complexes in solution

• Brij Bhushan Tewari ^[1]
  1. [1] University of Guyana

     University of Guyana

     Guyana

     
• Localización: Revista de la Sociedad Química del Perú, ISSN-e 2309-8740, ISSN 1810-634X, Vol. 76, Nº. 3, 2010, págs. 293-301
• Idioma: inglés
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• Resumen

  • A method, involving the use of Paper Electrophoretic Technique (PET) is described for the study of binary complex systems in solution. This method is based on the movement of a spot of metal ion in an electric field at various pH of background electrolyte. A graph of pH versus mobility was used to obtain information on the binary complexes and to calculate its stability constants. The stability constant of Be(II) - proline and Co(II) - proline complexes were found to be (7.61 ± 0.11, 5.81 ± 0.07) and (4.97 ± 0.03, 3.69 ± 0.13) (logarithm stability constant values), respectively at ionic strength 0.1 Mol L-1 and a temperature of 35º C.