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TitleAn analytical protocol for determining the elemental chemistry of Quaternary sediments using a portable X-ray fluorescence spectrometer
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorKnight, R DORCID logo; Kjarsgaard, B A; Stepner, D A J; Russell, H A JORCID logo
SourceSouthern Ontario groundwater project 2014-2019: summary report; by Russell, H A JORCID logo (ed.); Kjarsgaard, B A (ed.); Geological Survey of Canada, Open File 8536, 2020 p. 95-107, https://doi.org/10.4095/321095 Open Access logo Open Access
Year2020
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
RelatedThis publication is contained in Southern Ontario groundwater project 2014-2019: summary report
File formatpdf
Subjectssurficial geology/geomorphology; geochemistry; Nature and Environment; Science and Technology; sediment geochemistry; x-ray fluorescence analyses; spectrometric analyses; in-field instrumentation; geochemical analyses; sampling methods; sample preparation; analytical methods; compilation techniques; methodology; protocol; Phanerozoic; Cenozoic; Quaternary
Illustrationstables; flow diagrams; plots
ProgramGroundwater Geoscience, Aquifer Assessment & support to mapping
Released2020 05 28
AbstractAdvances in portable X-ray fluorescence (pXRF) technology have resulted in the ability to collect high-quality geochemical data for sediments at a fraction of the cost of traditional laboratory methods. The analytical quality of pXRF derived geochemical data is dependent on numerous factors including sample heterogeneity, grain size, moisture content, sample thickness, and instrument specifications such as power parameters, X-ray tube type, and dwell time. In order to ensure precise and accurate results using a pXRF spectrometer an analytical protocol has been developed using reference materials and prepared Quaternary sediments. This protocol considers 1) Sample preparation, 2) Analysis, and 3) Data compilation/presentation. Although the pXRF spectrometer provides concentrations for 41 elements it has been determined that only a subset of these elements meet the criteria for near definitive, quantitative, and qualitative data. Although the analytical protocol is robust, sample collection and preparation is still the key to a successful geochemical study. A significant advantage of pXRF technology is the opportunity to refine sampling strategies in near real time and the ability to add additional samples to a project with little budget increase.
Summary(Plain Language Summary, not published)
Collection of papers on work completed in the past five years as part of the southern Ontario Groundwater Project. This edited volume is a collection of currently unreported work.
GEOSCAN ID321095

 
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