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An Analytical Method for the Determination of Plutonium in Plant Materials

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Abstract

An analytical method for the determination of plutonium in plant materials has been investigated. Plutonium was separated from sample solutions by using two anion-exchange columns. In the first stage, the higher valent plutonium Pu(IV, V, VI) in the sample solution was reduced to trivalent plutonium in the presence of sulfurous acid in a 6 M hydrochloric acid solution; the trivalent plutonium was then separated from some metallic ions by using anion-exchange column. Next, the trivalent plutonium was oxidized to quadrivalent plutonium in the presence of hydrogen peroxide in a 9 M hydrochloric acid solution; the quadrivalent plutonium was adsorbed on another anion-exchange column. Column was washed with 9 M hydrochloric acid, and then with an 8 M nitric acid solution; the plutonium on the resin was then eluted with a diluted hydrochloric acid solution containing sulfurous acid. In the final stage, plutonium was electrodeposited on a stainless-steel disk together with the molybdenum carrier. By this method, the recovery rate of plutonium in the sample solution was 97.0±3.4% in seven repeated experiments. In addition, plutonium-238 and plutonium-239+240 in several kinds of herbs imported to Japan from Europe were determined.

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Authors and Affiliations

  1. National Institute of Hygienic Sciences, Kamiyoga, Setagaya, Tokyo, 158, Japan

    Katsuaki Kametani

  2. The Institute of Public Health, Shiroganedai, Minato, Tokyo, 105, Japan

    Kiyoshi Iwashima

  3. Liaoning Institute of Labour Hygiene, Heping, Shenyang, Haoning, China

    Shufen Jiao

Authors
  1. Katsuaki Kametani
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  2. Kiyoshi Iwashima
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  3. Shufen Jiao
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Kametani, K., Iwashima, K. & Jiao, S. An Analytical Method for the Determination of Plutonium in Plant Materials. ANAL. SCI. 7, 789–792 (1991). https://doi.org/10.2116/analsci.7.789

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  • DOI: https://doi.org/10.2116/analsci.7.789

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