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Simultaneous determination of arsenic, mercury, antimony and selenium in biological materials with prior collection of gaseous products followed by neutron activation analysis

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Abstract

A method combining prior collection of gaseous products with subsequent neutron activation analysis has been developed for simultaneous determination of traces of arsenic, mercury, antimony and selenium in biological materials. The generation of hydrides of arsenic, antimony and selenium and cold vapor of mercury in the vapor generaion and collection system was investigated by the use of radiotracers of the respective elements. The result indicates that selenium and mercury can be completely evaporated from the digested sample solution in 5M HCl with the addition of 5% sodium tetrahydroborate solution, while additional reduction proces by potassium iodide and ascorbic acid is needed for complete evaporation of arsenic and antimony. The gaseous products were collected in a quartz tube for neutron irradiation. The detection limits of these elements were fount to be in the range of 10−7 to 10−8 g under the present experimental conditions. The reliability was checked with NBS standard reference materials.

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Authors and Affiliations

  1. Institute of Nuclear Science, National Tsing Hua University, 300, Hsinchu, (Taiwan Republic of China)

    C. Y. Wu, P. Y. Chen & M. H. Yang

Authors
  1. C. Y. Wu
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  2. P. Y. Chen
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  3. M. H. Yang
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Wu, C.Y., Chen, P.Y. & Yang, M.H. Simultaneous determination of arsenic, mercury, antimony and selenium in biological materials with prior collection of gaseous products followed by neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry, Articles 112, 133–140 (1987). https://doi.org/10.1007/BF02037284

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  • DOI: https://doi.org/10.1007/BF02037284

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