Abstract
Complexation of tungsten with 2-hydroxy-5-chlorothiophenol (HCTP) and hydrophobic amines (A) was studied by spectrophotometry. Aniline, N-methylaniline, and N,N-dimethylaniline were the examined hydrophobic amines. As was found, in weakly acidic media, optimal pH 4.2-5.4, a number of mixedligand complexes formed. The ratio of components in the complexes W(VI): HCTP: A was found to be 1: 2: 2. The maximum of absorbance was observed at λ = 465–475 nm, ɛ = (2.4–2.6) × 104. A number of methods for the quantification of tungsten in various types of steel were developed. They demonstrated high sensitivity and precision; the relative standard deviation did not exceed 5%.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Busev, A.I., Ivanov, V.M., and Sokolova, T.A., Analiticheskaya khimiya vol’frama (Analytical Chemistry of Tungsten), Moscow: Nauka, 1976.
Verdizade, N.A., Zalov, A.Z., Allakhverdiev, M.A., and Ibragimov, G.I., Abstracts of Papers, Mezhdunarodnaya konferentsiya Ekstraktsiya organicheskih soedinenii (Int. Conf. on Extraction of Organic Substances), Voronezh, 2010.
Verdizade, N.A., Zalov, A.Z., Kuliev, K.A., Abaskulieva, U.B., and Ibragimov, G.I., Abstracts of Papers, Vserossiiskaya konferentsiya “Khimicheskii analiz” (All-Russia Conf. on Chemical Analysis), Moscow, 2008.
Verdizade, N.A., Amrakhov, T.I., Kuliev, K.A., and Zalov, A.Z., J. Anal. Chem., 1997, vol. 52, no. 10, p. 944.
Korostelyov, P.P., Prigotovlenie rastvorov dlya khimikoanaliticheskih rabot (Preparation of Solutions for Chemical and Analytical Works), Moscow: AN SSSR, 1961.
Bulatov, M.I., and Kalinkin, I.P., Prakticheskoe rukovodstvo po fotokolorimetricheskim i spektrofotometricheskim metodam analiza (Practical Guide on Photocolorimetry and Spectrophotometry Analytical Methods), Moscow: Khimiya, 1972.
Nazarenko, V.A. and Biryuk, E.A., Zh. Anal. Khim., 1967, vol. 12, no. 2, p. 463.
Nazarenko, V.A., Trudy komissii po analiticheskoi khimii AN SSSR (Proc. Commission on Anal. Chem. AN USSR), Moscow: Nauka, 1969, vol. 17.
Nakamoto, K., Infrared and Raman Spectra of Inorganic and Coordination Compounds, Wiley, 1986.
Bellamy, L.J., The Infrared Spectra of Complex Molecules, London: Methuen Co., 1958.
Akhmedli, M.K., Klygin, A.E., Ivanova, L.I., and Bashirov, E.A., Zh. Neorg. Khim., 1974, vol. 19, no. 8, p. 2007.
Verdizade, N.A., Zalov, A.Z., Kuliev, K.A., Amrakhov, T.A., and Samedova, V.M., J. Anal. Chem., 2000, vol. 55, no. 4, p. 331.
Aleksovskii, V.B., Bardin, V.V., and Bulatov, N.I., Fiziko-khimicheskie metody analyza (Fisico-Chemical Methods of Analysis), Leningrad: Khimiya, 1988.
Author information
Authors and Affiliations
Additional information
Original Russian Text © A.Z. Zalov, N.A. Verdizade, 2013, published in Zhurnal Analiticheskoi Khimii, 2013, Vol. 68, No. 3, pp. 230–235.
Rights and permissions
About this article
Cite this article
Zalov, A.Z., Verdizade, N.A. Extraction-spectrophotometry determination of tungsten with 2-hydroxy-5-chlorothiophenol and hydrophobic amines. J Anal Chem 68, 212–217 (2013). https://doi.org/10.1134/S1061934813010152
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1061934813010152