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XAFS Techniques for Catalysts, Nanomaterials, and Surfaces pp 193–206Cite as

XAFS for Ultra Dilute Systems

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Abstract

The EXAFS is usually measured in a transmission mode. For dilute system signal is too weak and hindered by the large background. In that case one may use a fluorescence mode. The sensitivity of fluorescence mode depends on the S/B ratio. In the low concentration system, energy-resolved detector can be used. In the ultra dilute crystal monochromator can effectively distinguish the fluorescence and the background. We can now have a signal of the dilute system with less than 1 ppb.

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Authors and Affiliations

  1. Institute for Catalysis, Hokkaido University, Sapporo, 001-0021, Japan

    Kiyotaka Asakura

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  1. Kiyotaka Asakura
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Correspondence to Kiyotaka Asakura .

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Editors and Affiliations

  1. The University of Electro-Communications Innovation Research Center for Fuel Cells, Graduate School of Informatics and Engineering, Tokyo, Japan

    Yasuhiro Iwasawa

  2. Institute for Catalysis, Hokkaido University, Sapporo, Japan

    Kiyotaka Asakura

  3. Research Center for Materials Science, Nagoya University, Nagoya, Japan

    Mizuki Tada

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Asakura, K. (2017). XAFS for Ultra Dilute Systems. In: Iwasawa, Y., Asakura, K., Tada, M. (eds) XAFS Techniques for Catalysts, Nanomaterials, and Surfaces. Springer, Cham. https://doi.org/10.1007/978-3-319-43866-5_14

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