Conclusions
It has been shown that it is possible to determine polarographically, using a dropping mercury electrode, the elements vanadium, nickel, cobalt, and iron in the form of their sulfosalicylic acid complexes in an ammonium buffer electrolyte.
The method was used to determine these elements in the concentrations in which they are present in the mineral residues of petroleum and petroleum products.
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L. G. Mashireva and K. I. Zimina, Khim. i Tekhnol. Topliv i Masel, No. 10 (1960).
L. G. Mashireva and K. I. Zimina, Khim. i Tekhnol. Topliv i Masel, No. 2 (1961).
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E. N. Vinogradova and G. V. Prokhorova, Zh. Anal. Khim.,23, No. 5 (1968).
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 11, pp. 52–54, November, 1969.
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Golikova, N.D., Ratovskaya, A.A. Polarographic determination of vanadium, nickel, cobalt, and iron in petroleum residues. Chem Technol Fuels Oils 5, 834–837 (1969). https://doi.org/10.1007/BF00719142
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DOI: https://doi.org/10.1007/BF00719142