Measurement Techniques

, Volume 53, Issue 4, pp 368–372 | Cite as

Coulometric device within a unit for state primary standards

  • M. A. Artemenkov
  • O. V. Karpov
  • V. D. Kutovoi
  • V. A. Zvezdina

The operating principle and composition of the VNIIFTRI coulometric device is based on a three-chamber electrochemical cell of vertical construction that is part of the set of primary state standards for the pH scale and indices of pX ion indices. Metrological characteristics of the device ensure reproducibility of pH in the standard with an error of not more than 0.003 in the range of pH = 1.0–12, and this corresponds to the best world analogs.

Key words

coulometry coulometric device titration hydrogen ion mass concentration 


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  1. 1.
    I. L. Knunyants (ed.), Large Encyclopaedic Dictionary. Chemistry [in Russian], BSE, Moscow (1998), p. 292.Google Scholar
  2. 2.
    M. Mariassy, K. W. Pratt, and P. Spitzer, “Major application of electrochemical techniques at national metrology institutes,” Metrologia, 46, 199213 (2009).CrossRefGoogle Scholar
  3. 3.
  4. 4.
    B. Taylor,V. Parker, and D. Landenberg, Fundamental Constants and Quantum Electrodynamics [Russian translation], Atomizdat, Moscow (1972).Google Scholar
  5. 5.
    K. W. Pratt, “Automated, high-precision coulometric titrimetry,” Analytica Chimica Acta, 289, 125 (1964).CrossRefGoogle Scholar
  6. 6.
    M. Breitenbach, Precision Constant Current Coulometry System,
  7. 7.
    M. Máriássy, L. Vyskocil, and A. Mathiasová, “Link to the SI via primary direct methods,” Accred. Qual. Assur., No. 5, 437 (2000).Google Scholar
  8. 8.
    “Measurement of pH. Definition, standards and procedures (UPAC Recommendations 2002),” Pure Appl. Chem., 74, 2169 (2002).Google Scholar
  9. 9.
    A. S. Doinikov et al., “Commentary on the introduction of interstate standard GOST 8.134-98 Aqueous Solution pH scale,” Elektrokhimiya, 36, No. 3, 374 (2000).Google Scholar
  10. 10.
    O. V. Karpov, “VNIIFTRI standard base in the field of physicochemical measurements,” Proc. 3rd Int. Sci.-Pract. Conf. Khimmet-3–2008, Kiev (2008).Google Scholar
  11. 11.
    O. V. Karpov, V. D. Kutovoi, and V. A. Zvezdina, “State primary standard of pX ion activity indices in aqueous solutions,” ibid.Google Scholar
  12. 12.
    V. E. Bower and R. S. Davis, “The electrochemical equivalent of pure silver: a value of the Faraday constant,” J. Res. NBS, 85, No. 3, 175 (1980).Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2010

Authors and Affiliations

  • M. A. Artemenkov
    • 1
  • O. V. Karpov
    • 1
  • V. D. Kutovoi
    • 1
  • V. A. Zvezdina
    • 1
  1. 1.All-Russia Research Institute of Physicotechnical and Radio Measurements (VNIIFTRI)MendeleevoRussia

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