The neutron activation analysis of mercury in soil.

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概要

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• A radiochemical neutron activation procedure has been designed for the determination of mercury in soils. After the irradiation of 100 mg of soil it was decomposed with a hydrofluoric and perchloric acid mixture in a platinum crucible, and the mercury was separated radiochemically by solvent extraction from sulfuric acid·potassium iodide media into toluene, followed by precipitation as a sulfide. The radioactivity of <SUP>197</SUP>Hg was measured by using a Ge(Li) detector. The chemical yield, as determined by atomic absorption spectrophotometry, was high enough, and the precision was satisfactory. The detection limit is estimated to be 1–2 ppb [(1–2)×10<SUP>−10</SUP> g] by this method. The above procedure was applied to the determination of mercury in soils sampled in the Kumamoto and Minamata districts and in between.

• 公益社団法人 日本化学会の論文

著者

• Urabe Noriake

  Department of Synthetic Chemistry, Faculty of Engineering, Kumamoto University

• Nakano Souichi

  Department of Synthetic Chemistry, Faculty of Engineering, Kumamoto University

• Honboh Jukichi

  Department of Synthetic Chemistry, Faculty of Engineering, Kumamoto University

関連論文

• The neutron activation analysis of mercury in soil.

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