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首页> 外文期刊>Journal of Applied Physics >X-ray fluorescence from a model liquid/liquid solvent extraction system
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X-ray fluorescence from a model liquid/liquid solvent extraction system

机译：来自模型液体/液体溶剂萃取系统的X射线荧光

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摘要

X-ray fluorescence near total reflection (XFNTR) is measured from the liquid/liquid interface between dodecane and an ErCl_3 aqueous solution by monitoring L shell Er emission lines. A custom sample cell is used to minimize absorption of the fluorescence x-rays that pass through dodecane on their way to the detector. The Er~(3+) concentration near the interface is related to the fluorescence intensity by a scale factor that is extracted by fitting the incident-angle dependent Er La. emission line intensities for different ErCl_3 bulk concentrations. As an application, we present the use of XFNTR to monitor the growth of interfacial crud in a model solvent extraction system consisting of an interface between a dodecane solution of bis(2-ethylhexyl) phosphate (HDEHP) and an ErCl_3 aqueous solution.
机译：通过监测L shell Er发射线，从十二烷与ErCl_3水溶液之间的液/液界面测量接近全反射的X射线荧光（XFNTR）。使用定制的样品池可最大程度地减少通过十二烷的荧光X射线对检测器的吸收。界面附近的Er〜（3+）浓度通过比例因子与荧光强度相关，该比例因子是通过对不同的ErCl_3整体浓度拟合入射角相关的Er La。发射线强度而提取的。作为应用，我们介绍了使用XFNTR来监视模型溶剂萃取系统中界面杂质的生长，该溶剂萃取系统由磷酸双（2-乙基己基）酯（HDEHP）的十二烷溶液和ErCl_3水溶液之间的界面组成。

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  • 来源
    《Journal of Applied Physics》 |2011年第10期|p.102214.1-102214.6|共6页
  • 作者

    Wei Bu; Binyang Hou; Miroslav Mihaylov; Ivan Kuzmenko; Binhua Lin; Mati Meron; L Soderholm; Guangming Luo; Mark L. Schlossman;

  • 作者单位

    Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USA;

    Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USA;

    Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USA;

    XSD, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA;

    The Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, USA;

    The Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois 60637, USA;

    Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA;

    Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA;

    Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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