Skip to main content
Log in

Sorption–Desorption Photometric Determination of Trace Iron in Sodium, Potassium, and Ammonium Thiocyanates Using Polyurethane Foams

  • Published:
Journal of Analytical Chemistry Aims and scope Submit manuscript

Abstract

A reagent-free sorption photometric method for determining trace iron(III) in alkali-metal and ammonium thiocyanates was developed. The method consists in the adsorption of iron(III) thiocyanate complexes on polyurethane foams at pH 2–3 followed by the desorption of complexes with acetone and a measurement of the absorbance of solutions. The analytical range for iron was 0.5–20 μg in a 0.2–2.5-g portion of salt. The determination limit and relative standard deviation were 2 × 10–5% and 20–30%, respectively (n= 3; P= 0.95). The specific feature of the determination is that an additional photometric reagent is not introduced in the solution of the salt to be analyzed, because thiocyanate, that is, the matrix component of the test sample, acts as such a reagent.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

REFERENCES

  1. Bowen, H.J.M., J. Chem. Soc., A, 1970, nos. 7-8, p. 1082.

  2. Abbas, M.N.,Vertes, A., andBraun, T., Radiochem. Radioanal. Lett., 1982, vol. 54, p. 17.

    Google Scholar 

  3. Nabivanets, B.I.,Lysenko, E.N.,Sukhan, T.A., et al., Zh. Obshch. Khim., 1999, vol. 69, no. 2, p. 192.

    Google Scholar 

  4. Gorlach, V.F.,Nabivanets, B.I.,Tabenskaya, T.V., et al., Ukr. Khim. Zh., 1994, vol. 60, no. 9, p. 609.

    Google Scholar 

  5. Dmitrienko, S.G.,Kosyreva, O.A., andRunov, V.K., Sovremennye metody analiticheskogo kontrolya na promyshlennykh predpriyatiyakh (Modern Methods for Analytical Control at Industrial Enterprises), Moscow: Znanie, 1991.

    Google Scholar 

  6. Dmitrienko, S.G.,Kosyreva, O.A.,Rumov, V.K., andZolotov, Yu.A., Mendeleev. Commun., 1991, p. 75.

  7. Sukhan, V.V.,Nabivanets, B.I.,Trokhimenko, O.M., et al., Ukr. Khim. Zh., 1998, vol. 64, no. 8, p. 121.

    Google Scholar 

  8. Mikhalyuk, P.I.,Nazarenko, A.Yu., andSukhan, V.V., Zh. Anal. Khim., 1991, vol. 46, no. 12, p. 2325.

    Google Scholar 

  9. GOST (State Standard) 10643-75: NaSCN, 1975.

  10. GOST (State Standard) 4139-75: KSCN, 1975.

  11. STSEV (Standard of the Council of Economic Mutual Aid) 222-75: NH4S

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Nabivanets, B.I., Sukhan, V.V., Lysenko, E.N. et al. Sorption–Desorption Photometric Determination of Trace Iron in Sodium, Potassium, and Ammonium Thiocyanates Using Polyurethane Foams. Journal of Analytical Chemistry 56, 819–822 (2001). https://doi.org/10.1023/A:1016752111308

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1016752111308

Keywords

Navigation