JOURNAL of the Tunisian Chemical Society

Nitrate and Phosphate ions (H₂PO₄^-,HPO₄^2-) adsorption were studied at the mercury / solution interface, by the measurements of the interfacial tension depending on the electrode potential and the salt concentration. In the presence of polylysine, the anionic adsorption is independent from the concentration. The polylysine eliminate the oxyanion effect in high charge for H₂PO₄^- and NO₃^-. Any oxyanions adsorption is noticed by the addition of NaCl 0.5 M.

H. Ghabi, M. Dhahbi

Pages 727-737