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Qualitative and Quantitative Analysis of Mercury Ion in the water environment Using Surface-enhanced Raman Spectroscopy

Abstract

汞(mercury)元素是人体非必需的元素,其单质和化合物均具有很高的生物毒性,且能通过食物链进行生物转化和富集而引发各种疾病。汞离子(Hg2+)含量的检测是研究其毒理效应的前提,在环境和生命等科学研究中有非常重要的意义。 拉曼光谱通常用于分子结构的研究,非常弱的拉曼光谱信号限制了拉曼光谱的定量分析应用。表面增强拉曼光谱(Surface-enhancedRamanScattering,SERS)相比于普通的拉曼光谱具有高灵敏度被用于环境和生物分析领域,其中SERS方法对Hg2+的测定吸引了许多研究者的关注。 由于Hg2+离子的拉曼散射横截面十分小甚至没有振动模式,导致Hg2+的SERS直接...Mercury is one of the non-essential elements for human beings. Mercury and its compounds have high toxicity, and may undergo biotransformation and accumulation in human body through the food chain, causing various diseases. It is very important and necessary to determine mercury ion (Hg2+) in the environment and life system before studying its environmental behavior and toxicological effects. ...学位:理学硕士院系专业:化学化工学院_分析化学学号:2052012115147

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