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Journal of Analytical Chemistry

, Volume 74, Issue 2, pp 108–113 | Cite as

Organic Reagents and Double-Layer Supports in the Sequential Sorption-Spectroscopic Determination of Ti(IV), V(V), Mo(VI), and Ni(II) from One Sample

  • V. P. DedkovaEmail author
  • O. P. Shvoeva
  • A. A. Grechnikov
ARTICLES
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Abstract

The conditions of the simultaneous preconcentration of Ti(IV), V(V), Mo(VI), and Ni(II) on a double-layer support and their sequential determination using organic reagents are studied by diffuse reflectance spectroscopy. Disks of polyacrylonitrile fiber filled with an anion exchanger (PANV–AV-17) or a cation exchanger (PANVKU-2) are used as supports. The determination of titanium and nickel on PANV–KU-2 disks is based on the successive interaction of nickel with dimethylglyoxime (DMG) and titanium with 2,7-dichlorochromotropic acid (DCCA). The determination of vanadium and molybdenum on PANV–AV-17 disks is based on the interaction of vanadium with 8-hydroxyquinoline-5-sulfonic acid (HOS) and 0.1 M HCl and molybdenum with phenylfluorone (PF). The dependences of the analytical signals of Ti‒DCCA and Ni‒DMG complexes on PANV‒KU-2 and V‒HOS and Mo‒PF complexes on PANV‒AV-17 on the pH of solutions in sorption in the dynamic mode are studied. The optimal pH value of the solutions for the simultaneous sorption of four elements is 3.5 ± 0.1. The influence of accompanying elements in the mixture on the determination of Ti, V, Mo, and Ni is studied. Characteristics of the sorption-spectroscopic determination of elements are given, i.e., the sequence of the treatment of support disks with reagent solutions, the conditions for eliminating the signal of the previous element, the coefficients of calibration equations and the linearity ranges of the calibration curves, and the limits of detection of elements. Selectivity factors are determined and a procedure for the sorption-spectroscopic determination of Ti, V, Mo, and Ni on their simultaneous presence is developed. The results of analysis of model solutions with different ratios of elements are presented; RSD < 15%.

Keywords:

diffuse reflectance spectroscopy PANV‒KU-2 PANV‒AV-17 2,7-dichlorochromotropic acid dimethylglyoxime 8-hydroxyquinoline-5-sulfonic acid phenylfluorone Ti(IV) V(V) Mo(VI) Ni(II) 

Notes

REFERENCES

  1. 1.
    Zaporozhets, O.A., Gaver, O.M., and Sukhan, V.V., Russ. Chem. Rev., 1997, vol. 66, no. 7, p. 637.CrossRefGoogle Scholar
  2. 2.
    Savvin, S.B., Dedkova, V.P., and Shvoeva, O.P., Russ. Chem. Rev., 2000, vol. 69, no. 3, p. 187.CrossRefGoogle Scholar
  3. 3.
    Zolotov, Yu.A., Ivanov, V.M., and Amelin, V.G., Khimicheskie test-metody analiza (Chemical Test Methods of Analysis), Moscow: Editorial URSS, 2002.Google Scholar
  4. 4.
    Lin Ying, Wu Di, Li Jingfeng, and Ga Ridi, Spectrosc. Spectral. Anal., 1999, vol. 19, no. 5, p. 694.Google Scholar
  5. 5.
    Amelin, V.G. and Abramenkova, O.I., J. Anal. Chem., 2008, vol. 63, no. 11, p. 1112.CrossRefGoogle Scholar
  6. 6.
    Didukh, S.L., Losev, V.I., Mukhina, A.N., and Trofimchuk, A.K., J. Anal. Chem., 2016, vol. 71, no. 11, p. 1081.CrossRefGoogle Scholar
  7. 7.
    Sayed Zia Mohammadi, Hooshang Hamidian, Labeh Karimzadeh, and Zahra Noeinadini, J. Anal. Chem., 2013, vol. 68, no. 11, p. 953.CrossRefGoogle Scholar
  8. 8.
    Shvoeva, O.P., Dedkova, V.P., and Savvin, S.B., J. Anal. Chem., 2000, vol. 55, no. 6, p. 545.CrossRefGoogle Scholar
  9. 9.
    Dedkova, V.P., Shvoeva, O.P., and Savvin, S.B., J. Anal. Chem., 2009, vol. 64, no. 4, p. 350.CrossRefGoogle Scholar
  10. 10.
    Shvoeva, O.P., Dedkova, V.P., and Savvin, S.B., J. Anal. Chem., 2001, vol. 56, no. 3, p. 253.CrossRefGoogle Scholar
  11. 11.
    Shvoeva, O.P., Dedkova, V.P., and Savvin, S.B., J. Anal. Chem., 2001, vol. 56, no. 8, p. 758.CrossRefGoogle Scholar
  12. 12.
    Dedkova, V.P., Shvoeva, O.P., and Savvin, S.B., J. Anal. Chem., 2006, vol. 61, no. 8, p. 813.CrossRefGoogle Scholar
  13. 13.
    Shvoeva, O.P., Dedkova, V.P., and Savvin, S.B., J. Anal. Chem., 2010, vol. 65, no. 7, p. 699.CrossRefGoogle Scholar
  14. 14.
    Marhol, M., Ion Exchangers in Analytical Chemistry, Prague: Academia, 1982, vol. 2.Google Scholar
  15. 15.
    Korenman, I.M., Organicheskie reagenty v neorganicheskom analize (Organic Reagents in Inorganic Analysis), Moscow: Khimiya, 1980.Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • V. P. Dedkova
    • 1
    Email author
  • O. P. Shvoeva
    • 1
  • A. A. Grechnikov
    • 1
  1. 1.Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of SciencesMoscowRussia

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