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Spectrophotometric determination of thallium in zinc and zinc-base alloys with iodoacetic acid and hexamethylenetetramine

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  • Inorganic Analysis
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Abstract

Thallium(III) forms a ternary complex of yellow colour with iodoacetic acid and organic bases, especially hexamethylenetetramine. The complex is soluble in water and various organic solvents. Zinc, copper, cadmium and iron do not form complexes with these reagents, so that a spectrophotometric determination of thallium in zinc and its alloys is possible. The limit of detection is 15 μgg−1, the molar absorption coefficient about 2000 mol−1l−1 cm−1.

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Authors and Affiliations

  1. Technical Control Department, Iron and Steel Work “Skopje”, 91000, Skopje, Macedonia

    Dragan Mihajlović

  2. Institute of Chemistry, Faculty of Science, St. Kiril and Metodij University, P.O. Box 162, 91001, Skopje, Macedonia

    Trajče Stafilov

Authors
  1. Dragan Mihajlović
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  2. Trajče Stafilov
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Mihajlović, D., Stafilov, T. Spectrophotometric determination of thallium in zinc and zinc-base alloys with iodoacetic acid and hexamethylenetetramine. Fresenius J Anal Chem 356, 371–374 (1996). https://doi.org/10.1007/s0021663560371

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  • DOI: https://doi.org/10.1007/s0021663560371

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