Soft X-ray spectroscopy and imaging of interfacial chemistry in environmental specimens

    Authors

    B. P. Tonner; T. Droubay; J. Denlinger; W. Meyer-Ilse; T. Warwick; J. Rothe; E. Kneedler; K. Pecher; K. Nealson;T. Grundl

    Comments

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    Abbreviated Journal Title

    Surf. Interface Anal.

    Keywords

    XPS; XAFS; soft x-ray spectroscopy; Mn; Fe; OXIDATION-STATE; TRANSITION-METALS; ABSORPTION; IRON; DICHROISM; MANGANESE; Chemistry, Physical

    Abstract

    Interfaces between minerals and water, and minerals and microbes, are chemically complex and traditionally have been considered beyond the capabilities of surface science techniques, except for model systems under controlled laboratory conditions. We report on some advances in soft x-ray spectroscopy and imaging that make it possible to extract meaningful chemical information about interfaces of specimens that have complex histories, involving environmental exposure, These measurements utilize x-ray absorption spectroscopy, in combination with spatial resolution, in a technique called x-ray spectromicroscopy. Examples are drawn from attempts at Mn and Fe speciation of biologically produced minerals, bio-corrosion deposits and clays. Copyright (C) 1999 John Wiley & Sons, Ltd.

    Journal Title

    Surface and Interface Analysis

    Volume

    27

    Issue/Number

    4

    Publication Date

    1-1-1999

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    247

    Last Page

    258

    WOS Identifier

    WOS:000080014000012

    ISSN

    0142-2421

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