Determination of Trace Elements in Powdered Milk by Neutron Activation Analysis

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  • LO Jiunn Guang
    Institute of Nuclear Science, National Tsing Hua University
  • YEH Si Jung
    Institute of Nuclear Science, National Tsing Hua University

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Other Title
  • 中性子放射化分析法による粉乳中の微量元素の定量
  • チュウセイシ ホウシャカ ブンセキホウ ニヨル フンニュウチュウ ノ ビリョウ

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Abstract

Eight trace elements (Co, Cu, Zn, As, Cd, Sn, Sb and Hg) in powered milk have been determined simultaneously by neutron activation analysis with chemical group separation. The irradiated samples were digested with a mixture of HNO3 and H2O2 in a reflux system and subjected to the group separation. Then γ-rays from the radioactive products were measured with a Ge (Li) detector coupled with a 4096 channel pulse height analyzer. The powdered milk samples investigated have been found not to contain heavy metal elements over the warning levels. This method has been shown to be useful for simultaneous determination of heavy metals in biological materials.

Journal

  • RADIOISOTOPES

    RADIOISOTOPES 25 (4), 206-209, 1976

    Japan Radioisotope Association

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