Application of benchtop micro-XRF to geological materials

Flude, Stephanie and Haschke, Michael and Storey, Michael (2017) Application of benchtop micro-XRF to geological materials. Mineralogical Magazine, 81 (4). pp. 923-948. ISSN 0026-461X (https://doi.org/10.1180/minmag.2016.080.150)

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Abstract

Recent developments in X-ray optics have allowed the development of a range of commercially available benchtop micro-XRF (μ-XRF) instruments that can produce X-ray spot sizes of 20-30 μm on the sample, allowing major- and trace-element analysis on a range of sample types and sizes with minimal sample preparation. Such instruments offer quantitative analysis using fundamental parameter based 'standardless' quantification algorithms. The accuracy and precision of this quantitative analysis on geological materials, and application of micro-XRF to wider geological problems is assessed using a single benchtop micro-XRF instrument. Quantitative analysis of internal reference materials and international standards shows that such instruments can provide highly reproducible data but that, for many silicate materials, standardless quantification is not accurate. Accuracy can be improved, however, by using a simple type-calibration against a reference material of similar matrix and composition. Qualitative analysis with micro-XRF can simplify and streamline sample characterization and processing for subsequent geochemical and isotopic analysis.

  • Item type:Article
    ID code:83970
    Dates:
    Date
    Event
    1 August 2017
    Published
    23 September 2016
    Accepted
    Notes:Funding Information: The Quaternary Dating Laboratory is funded by the Villum Foundation. Publisher Copyright: © 2017.
    Subjects:Science > Geology
    Department:Faculty of Engineering > Civil and Environmental Engineering
    Depositing user: Pure Administrator
    Date deposited:02 Feb 2023 09:11
    Last modified:18 Apr 2024 06:14
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/83970
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