Russian Journal of Applied Chemistry

, Volume 78, Issue 2, pp 267–272 | Cite as

Metal Ion Buffer Systems for Ionometry in Water-Ethanol Mixtures and Micellar Medium of Sodium Dodecyl Sulfate

  • O. S. Chernysheva
  • L. P. Loginova
  • V. D. Bazilyanskaya
Applied Electrochemistry and Corrosion Protection of Metals


The concentration dissociation constants of nitrilotriacetic acid and the concentration stability constants of Cd(II) complexes with the nitrilotriacetic acid anion in water-ethanol mixtures and of Cu(II) and Cd(II) complexes with o-phenanthroline and 2,2′-bipyridine in micellar solutions of sodium dodecyl sulfate were determined potentiometrically. Based on the concentration constants determined, Cd2+ and Cu2+ buffer solutions were developed for calibration of a Cd2+-selective electrode in water-ethanol mixtures and Cd2+ and Cu2+-selective electrodes in micellar solutions of sodium dodecyl sulfate within the ranges pCu 9.7–13.5 and pCd 7.5–11.8.


Sodium Dodecyl Sulfate Stability Constant Dissociation Constant Bipyridine Buffer System 
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Copyright information

© MAIK “Nauka/Interperiodica” 2005

Authors and Affiliations

  • O. S. Chernysheva
    • 1
  • L. P. Loginova
    • 1
  • V. D. Bazilyanskaya
    • 1
  1. 1.Karazin National UniversityKharkovUkraine

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