分子荧光偏振技术及其在研究腐殖物质与污染物相互作用方面的研究进展
Advances in Molecular Fluorescence Polarization Spectroscopy and its Applications to Study on the Interaction between Humic Substances and Pollutants
查看参考文献18篇
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文摘
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腐殖物质对污染物如有毒金属元素(如汞,铜和铅等)及有机污分子荧光染物(如多环芳烃,有机农药等)具有络合或吸附作用,从而改变污染物的存在形式及其迁移途径,所以能有效地降低污染物的毒性.近年来,用分子荧光学研究两者间的这种作用过程逐渐得到人们的关注.本文综述了运用荧光偏振技术在腐殖物质与污染物的相互作用领域的研究现状.荧光偏振的研究成果可加深对腐殖物质与污染机理的认识,能较精确地定量评估它们之间的作用强度,了解它们结合后的分子构型变化,有助于了解污染物在环境中的生物地球化学循环. |
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其他语种文摘
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Humic subsUinc.es (HS) are a ubiquitous natural organic matter in natural t'tivironments. As HS can hind or adsorb pollutants, e. g. toxic metal elements (Hg, Pb and Cu etc) and organic pollutants (polycyclic aromatic hydrocarbons and carba-mate pesticides etc), thus HS can change the existing states, .specialion and transporting stales of pollulnnls, and then to decrease the harmfulness and toxicity of pollutants to file environments. The molecular fluorescence polarization speclroscopy has been widely used to study qualitatively and quantitatively the behaviors of the HS-pollulanls interaction process due to its sensitivity, rapidness, non-destructivity and simplicity. This paper has reviewed some advances in molecular fluorescence polarization spectroscopy and its application to study on the field of interaction between humic substances and pollutants. The results obtained by using the molecular fluorescence polarization spectroscopy have played very important role to understand the mechanism of the HS-pollulants interaction, to precisely evaluate the intensity of the HS-pollntants interaction, to understand the variation of the molecular structures after the HS-pollutants combination, and to understand the biogeochemical cycling process of pollutants in our living environment. |
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来源
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矿物岩石地球化学通报
,2005,24(1):75-78 【扩展库】
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关键词
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荧光偏振
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腐殖物质
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重金属
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有机污染物
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地址
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中国科学院,地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550002
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语种
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中文 |
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文献类型
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综述型 |
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ISSN
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1007-2802 |
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学科
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地质学 |
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基金
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国家973计划
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中国科学院“百人计划”项目
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国家自然科学基金资助项目
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文献收藏号
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CSCD:1876996
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