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Journal of Analytical Chemistry

, Volume 65, Issue 1, pp 21–25 | Cite as

Extraction equilibria and spectrophotometric determination of vanadium(V) with 4-nitrocatechol and the ion-pair reagent thiazolyl blue tetrazolium

  • P. V. Racheva
  • K. B. Gavazov
  • V. D. Lekova
  • A. N. Dimitrov
Articles

Abstract

The formation and liquid-liquid extraction of a yellow ternary complex of vanadium(V) with 4-nitrocatechol (NC) and the ion-pair reagent Thiazolyl Blue Tetrazolium ⨑ub;3-(4,5-dimethyl-2-thiazol)-2,5diphenyltetrazolium bromide, MTT⫂ub; with 1: 2: 3 stoichiometry (V: NC: MTT) was studied. The optimum extraction conditions (pH, concentration of the reagents, extraction time), spectrophotometric parameters of the extract and key constants (extraction constant, association constant, distribution constant) were determined. Beer’s law was obeyed for concentrations ranging from 0.12 to 1.2 µg/mL of vanadium(V) with a molar absorptivity of ɛ = 3.13 × 104 L/mol cm at λmax = 400 nm. The effect of diverse ions was studied and extraction-spectrophotometric procedures for determination of vanadium in catalysts and steels were proposed.

Keywords

Vanadium CDTA Thiazolyl Blue Tetrazolium Suggested Formula Iodo Nitro Tetrazoli 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Cornard, J.P., Lapouge, C., and Merlin, J.C., Chem. Phys., 2007, vol. 340, p. 273.CrossRefGoogle Scholar
  2. 2.
    Giroux, S., Aury, S., Rubini, P., Parant, S., Desmurs, J.R., and Dury, M., Polyhedron, 2004, vol. 23, p. 2393.CrossRefGoogle Scholar
  3. 3.
    Cornard, J.P. and Rasmiwetti Merlin, J.C., Chem. Phys., 2005, vol. 309, p. 239.CrossRefGoogle Scholar
  4. 4.
    Merce, A.L.R., Greboge, C., Mendes, G., and Mangrich, A.S., J. Brazill Chem. Soc., 2005, vol. 16, p. 37.Google Scholar
  5. 5.
    Macdonald, C.J., Inorg. Chim. Acta, 2000, vol. 311, p. 33.CrossRefGoogle Scholar
  6. 6.
    Turkel, N., Aydin, R., and Ozer, U., Turkish J. Chem., 1999, vol. 23, p. 139.Google Scholar
  7. 7.
    Sommer L., Ackermann G., Thorburn Burns D., and Savvin, S.B., Pure Appl. Chem., 1990, vol. 62, p. 2147.CrossRefGoogle Scholar
  8. 8.
    Busev, A.I. and Karyakina, Z.P., Zhurn. anal. khim., 1967, vol. 22, p. 1506.Google Scholar
  9. 9.
    Kuwada, K., Motomizu, S., and Toei, K., Jap. Analyst, 1977, vol. 26, p. 609.Google Scholar
  10. 10.
    Marczenko, Z. and Lobinski, R., Talanta, 1988, vol. 35, p. 1001.CrossRefGoogle Scholar
  11. 11.
    Simeonova, Zh., Gavazov, K., and Alexandrov, A., Anal. Lab., 1998, vol. 7, p. 184.Google Scholar
  12. 12.
    Dimitrov, A. and Kostova, S., Bulg. Chem. Ind., 1999, vol. 70, p. 88.Google Scholar
  13. 13.
    Kostova, S., Dimitrov, A., and Alexandrov, A., Chem. Pap., 2000, vol. 54, p. 66.Google Scholar
  14. 14.
    Dimitrov, A.D., Lekova, V.D., Gavazov, K.B., and Boyanov, B.S., Cent. Eur. J. Chem., 2005, vol. 3, p. 747.CrossRefGoogle Scholar
  15. 15.
    Lekova, V.D., Gavazov, K.B., and Dimitrov, A.D., Chem. Pap., 2006, vol. 60, p. 283.CrossRefGoogle Scholar
  16. 16.
    Dimitrov, A.D., Lekova, V.D., Gavazov, K.B., and Boyanov, B.S., Zhurn. anal. khim., 2007, vol. 62, no. 2, p. 138 [J. anal. Chem. (Engl. Transl.), vol. 62, no. 2, p. 122].Google Scholar
  17. 17.
    Lobinski, R. and Marczenko, Z., Anal. Sci., 1988, vol. 4, p. 629.CrossRefGoogle Scholar
  18. 18.
    Lobinski, R. and Marczenko, Z., Anal. Chim. Acta, 1989, vol. 226, p. 281.CrossRefGoogle Scholar
  19. 19.
    Lobinski, R. and Marczenko, Z., Microchem. J., 1990, vol. 42, p. 197.CrossRefGoogle Scholar
  20. 20.
    Downard, A.J., Lenihan, R.J., Simpson, S.L., O’sullivan, B., and Powell, K.J., Anal. Chim. Acta, 1997, vol. 345, p. 5.CrossRefGoogle Scholar
  21. 21.
    Gleb, R.I., Laufer, D.A., Schwartz, L.M., and Wairimu, K., J. Chem. Eng. Data, 1989, vol. 34, p. 82.CrossRefGoogle Scholar
  22. 22.
    Dimitrov, A., Aleksandrov, A., and Docheva, M., in Collection of Scientific Papers: Chemistry, Plovdiv: Univ. of Plovdiv, 1983, vol. 21, p. 41.Google Scholar
  23. 23.
    Gavazov, K., Simeonova, Zh., and Alexandrov, A., in Collection of Scientific Papers: Chemistry, Plovdiv: Univ. of Plovdiv, 2002, vol. 31, p. 5.Google Scholar
  24. 24.
    Simeonova, Zh., Gavazov, K., and Alexandrov, A., in Collection of Scientific Papers: Chemistry, Plovdiv: Univ. of Plovdiv, 2005, vol. 33, p. 5.Google Scholar
  25. 25.
    Gavazov, K.B., Dimitrov, A.N., and Lekova, V.D., Uspekhi Khimii, 2007, vol. 76, p. 187.Google Scholar
  26. 26.
    Muzgin, V.N., Hamzina, L.B., Zolotavin, V.L., and Bezrukov, I.Ya., Analiticheskaya khimiya vanadiya (Analytical Chemistry of Vanadium), Zolotov, Yu.A., Ed., Moscow: Nauka, 1981.Google Scholar
  27. 27.
    Gavazov, K. and Patronov, G., in Scientific Researches of the Union of Scientists, Ser.: C (Proc. Balkan Conf. of Young Scientists), June 16–18, 2005, Plovdiv, 2005, vol. 5, p. 290.Google Scholar
  28. 28.
    Fedorova, N.D., Stepin, V.V., Onorina, I.A., and Kruglova, M.N., Zavod. lab., 1980, vol. 46, p. 8.Google Scholar
  29. 29.
    Marczenko, Z., Kolorymetryczne Oznaczanie Pierwiastkow (Colorimetric Determination of Elements), Warszawa: Wysdawnictwa Naukowo-Techniczne, 1968.Google Scholar
  30. 30.
    Bulatov, M.I. and Kalinkin, I.P., Prakticheskoe rukovodstvo po fotokolorimetricheskim i spektrofotometricheskim metodam analiza (Practical Manual on Photometric and Spectrophotometric Methods of Analysis), Leningrad: Khimiya, 1972.Google Scholar
  31. 31.
    Shnaiderman, S.Ya., Prokof’eva, G.N., Demidovskaya, A.N., and Klimenko, E.P., Zhurn. obshch. khim., 1972, vol. 42, p. 24.Google Scholar
  32. 32.
    Gavazov, K., Simeonova, Zh., and Alexandrov, A., Zhurn. neorg. khim., 2001, vol. 46, no. 3, p. 440 [Russ. J. Inorg. Chem. (Engl. Transl.), vol. 46, no. 3, p. 427].Google Scholar
  33. 33.
    Alexandrov, A., Budevsky, O., and Dimitrov, A., J. Radioanal. Chem., 1976, vol. 29, p. 243.CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • P. V. Racheva
    • 1
  • K. B. Gavazov
    • 1
  • V. D. Lekova
    • 1
  • A. N. Dimitrov
    • 1
  1. 1.Department of General and Inorganic ChemistryPlovdiv University “Paisii Khilendarski”PlovdivBulgaria

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