某地区土壤中~(241)Am和~(239)Pu的化学形态

Journal of Nuclear and Radiochemistry(2007)

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Abstract
用连续提取法研究了某地区放射性污染土壤中~(241)Am和~(239)Pu的化学形态。结果表明,供试土壤样品中各级态~(241)Am和~(239)Pu都以一种优势形态即残渣态存在,其中~(241)Am的残渣态含量达到总量的84%~91%,~(239)Pu达到98%左右,其它各级态含量较少,这说明实验土壤中的~(241)Am和~(239)Pu主要赋存于土壤的原生和次生稳定矿物中,属于稳定的化学形态,在环境中的迁移活性较小。
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Key words
~(239)Pu,sequential extraction,chemical speciation,~(241)Am
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