地表水体异常的汞同位素非质量分馏

来源 :第八届全国环境化学大会 | 被引量 : 0次 | 上传用户:fulva
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研究表明,天然样品中存在着汞同位素的质量分馏(MDF)和非质量分馏(MIF),主要是奇数汞同位素非质量分馏.实验表明,无机汞光还原、甲基汞光降解和液态单质汞蒸发等会产生奇数汞同位素非质量分馏.这可能解释水生生物中明显的MIF的实际观测结果.但是,由于非常低的汞浓度和基质干扰,水体汞同位素研究还非常有限,其在环境汞循环中的应用也鲜于报导.
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