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    188宝金博页面版: Separation Techniques in Effect-Directed Analysis

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    内容提示： Separation Techniques in Effect-DirectedAnalysisWerner Brack, Nadin Ulrich, and Mahmoud BatainehAbstract The continuous development of new chemicals enhances the complexityof environmental analysis and poses a risk to environmental and human health.Awareness is increasing that together with the chemical products on the market, theenormous number of transformation and by-products may contribute to this risk.Effect-directed analysis (EDA) has been developed to identify major toxicants insuch complex mixtures...

    文档格式：PDF | 页数：36 | 浏览次数：132 | 上传日期：2018-04-18 13:05:37 | 文档星级：
    Separation Techniques in Effect-DirectedAnalysisWerner Brack, Nadin Ulrich, and Mahmoud BatainehAbstract The continuous development of new chemicals enhances the complexityof environmental analysis and poses a risk to environmental and human health.Awareness is increasing that together with the chemical products on the market, theenormous number of transformation and by-products may contribute to this risk.Effect-directed analysis (EDA) has been developed to identify major toxicants insuch complex mixtures. Separation techniques in EDA are applied to reduce thecomplexity of environmental mixtures and provide valuable information on physi-cochemical and thus structural properties of candidate toxicants. Within the lastdecades, separation science provided an extensive understanding of processes andmechanisms in chromatography, developed novel stationary phases with specif i cseparationproperties,and introduced modeling tools such as linear solvation energyrelationships (LSER) to predict retention. A selection of these tools is compiled inthepresentpapertosupporttheexploitationofpresentknowledgeonchromatographyto enhance the ability to identify so far unknown toxicants in complex mixtures.Keywords Fractionation, LSER, Mechanism, QSRR, Retention prediction,Stationary phaseContents1 The Need for Separation in Effect-Directed Analysis ..................................... 842 Intermolecular Forces Supporting Separation .............................................. 853 General Def i nitions and Important Parameters in Chromatography ....................... 86W. Brack (*) and N. UlrichUFZ Helmholtz Centre for Environmental Research, Department of Effect-Directed Analysis,Permoserstraße 15, 04318 Leipzig, Germanye-mail: werner.brack@ufz.deM. BatainehDepartment of Chemical Engineering, Abu Dhabi Men’s College, Abu Dhabi, United ArabEmiratesW. Brack (ed.), Effect-Directed Analysis of Complex Environmental Contamination,Hdb Env Chem (2011) 15: 83–118, DOI 10.1007/978-3-642-18384-3_5,# Springer-Verlag Berlin Heidelberg 201183

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