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Study of chemical speciation of trace elements by molecular activation analysis and other nuclear techniques

机译:通过分子活化分析和其他核技术研究微量元素的化学形态

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The information on the chemical speciation of trace elements in biological and environmental systems is much needed to evaluate their biological and environmental significance. Albeit a number of atomic behavior-based analytical techniques are available for the analysis of chemical speciation of trace elements, nuclear analytical techniques, especially the molecular activation analysis method, can in many cases play a unique role. This review describes the methodology, merits and limitations of nuclear analytical techniques for chemical speciation study in biological and environmental samples. The emphases are focused on the chemical species and the environmental and biological significance of rare earth elements in natural plants and human liver, selenium in a mammalian organism, mercury in rat brain and liver, chromium in rat organs and Cr-rich yeast, organohalogens in pine needles and marine organisms, and iodine in sea-water, soil, atmosphere, marine plants and the thyroid gland for demonstration of the features of nuclear analytical techniques. The future perspectives of nuclear analytical techniques for the study of chemical species of trace elements will be briefly outlined as well.
机译:评估生物和环境系统中微量元素的化学形态信息非常需要评估它们的生物学和环境意义。尽管可以使用多种基于原子行为的分析技术来分析痕量元素的化学形态,但核分析技术(尤其是分子活化分析方法)在许多情况下可以发挥独特作用。这篇综述描述了用于在生物和环境样品中进行化学形态研究的核分析技术的方法,优缺点。重点是天然植物和人类肝脏中的稀土元素的化学种类,环境和生物学意义,哺乳动物有机体中的硒,大鼠脑和肝脏中的汞,大鼠器官和富铬酵母中的铬,有机卤素中的有机卤素。松针和海洋生物以及海水,土壤,大气,海洋植物和甲状腺中的碘,以证明核分析技术的特征。还将简要概述用于分析微量元素化学物种的核分析技术的未来前景。

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