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Radiotracer study of the behaviour of arsenic in the graphite furnace

Radiotracer-Untersuchung des Verhaltens von Arsen im Graphitofen

  • Original Papers
  • Trace element analysis
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Summary

The behaviour of As(III) and As(V) in the graphite furnace during the individual steps of the temperature program was investigated by means of the radiotracer76As. The investigated matrix systems include 1 mol/l HCl, 0.2 mol/l HNO3, 0.2 mol/l NaCl, urine, human serum and a tetramethylammonium hydroxide solution of hair. Significant stabilization effects can be achieved in the preatomization steps by using Ni, W, Mo, Pd, H2O2 as well as the mixtures H2O2 + Pd, HNO3 + Pd and H2O2 + Ni as matrix modifiers. In sample solutions containing chloride, stabilization of As(III) is possible only in presence of nitric acid. The experimental conditions for the determination of As in urine, human serum and hair have been optimized.

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Author notes

  1. S. Arpadjan

    Present address: Faculty of Chemistry, Clement Okhridsky University of Sofia, 1, A. Ivanov, Blvd., 1126, Sofia, Bulgaria

Authors and Affiliations

  1. Sektion Analytik und Höchstreinigung der Universität Ulm, Oberer Eselsberg N 26, D-7900, Ulm, Germany

    V. Krivan & S. Arpadjan

Authors
  1. V. Krivan
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  2. S. Arpadjan
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Dedicated to Prof. Dr. G. Tölg on the occasion of his 60th birthday

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Krivan, V., Arpadjan, S. Radiotracer study of the behaviour of arsenic in the graphite furnace. Z. Anal. Chem. 335, 743–747 (1989). https://doi.org/10.1007/BF01204079

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  • DOI: https://doi.org/10.1007/BF01204079

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