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Application of benchtop micro-XRF to geological materials

Stephanie Flude, Michael Haschke and Michael Storey
Application of benchtop micro-XRF to geological materials
Mineralogical Magazine (August 2017) 81 (4): 923-948

Abstract

Recent developments in X-ray optics have allowed the development of a range of commercially available benchtop micro-XRF (mu -XRF) instruments that can produce X-ray spot sizes of 20-30 mu m 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.


ISSN: 0026-461X
EISSN: 1471-8022
Coden: MNLMBB
Serial Title: Mineralogical Magazine
Serial Volume: 81
Serial Issue: 4
Title: Application of benchtop micro-XRF to geological materials
Affiliation: Roskilde University, Quaternary Dating Laboratory, Roskilde, Denmark
Pages: 923-948
Published: 201708
Text Language: English
Publisher: Mineralogical Society, London, United Kingdom
References: 46
Accession Number: 2017-071195
Categories: General geochemistry
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
Secondary Affiliation: Bruker Corporation, DEU, Germany
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201737
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