Calibration and Evaluation of an X-Ray Fluorescence Method for the Determination of Lead and Arsenic in Soils

DiScenza, Dana J.; Keimowitz, Alison R.; Fitzgerald, Neil

doi:10.4172/2380-2391.1000103

Cited by 7 publications

(8 citation statements)

References 8 publications

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“…This was demonstrated in glaciated terrains using till by Sarala (2016). This was also discussed by DiScenza et al (2014) for environmental analysis of soils. Ge et al (2005a) proposed procedures for the systematic use of pXRF in mineral exploration but the current practice is to develop site-specific strategies, making the most of continuous technology innovation by providers, and paying attention to QA/QC and to possible pitfalls (Brand, 2014;Brand and Brand, 2014).…”

Section: Relationship With Wet Chemical Analysesmentioning

confidence: 79%

A review of pXRF (field portable X-ray fluorescence) applications for applied geochemistry

Lemière

2018

Journal of Geochemical Exploration

152

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In the last thirty years, portable X-ray fluorescence (pXRF) has grown from prototypes to being a key technique for field geochemical analyses, especially for mining and environmental applications. This technology provides real-time or near real-time decision support for operational field decisions (exploration, mining, site remediation or waste management), provides a cost-saving alternative to classical laboratory analysis programs, and deals efficiently with remote or harsh field conditions. The ability to rapidly collect a large number of samples and replicate analyses facilitates acquisition of higher data density compatible with geostatistics.pXRF can be used profitably for sample screening and selection tasks, dynamic sampling plans based on field observations and measurements, grid mapping of a site and determining relative element abundance. In waste management and remediation, pXRF is used to identify unknown waste composition, and verify waste loads before disposal or treatment.In all applications, having robust QA/QC plans and systematic laboratory controls on selected samples are essential for ensuring reliable measurements. The best overall results are usually achieved through a clever combination of field (pXRF) and lab data, with pXRF providing the bulk of the data at low cost, on larger data sets and potentially with better reliability than lab-based campaigns based on a limited number of samples.

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Section: Relationship With Wet Chemical Analysesmentioning

confidence: 79%

A review of pXRF (field portable X-ray fluorescence) applications for applied geochemistry

Lemière

2018

Journal of Geochemical Exploration

152

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“…Digestion blank Pb concentrations were <0.05 ng g −1 measured concentrations, duplicates were within 12%, and NIST Montana Soil 2711b recoveries were between 87% and 96% of their certified values. We derived a relationship between XRF counts and Pb concentration via a linear regression of all measurements to estimate the full downcore profile of Pb concentrations from XRF counts (Figure S2; DiScenza et al, 2014).…”

Section: Sedimentary Analysesmentioning

confidence: 99%

Sources, Mechanisms, and Timescales of Sediment Delivery to a New England Salt Marsh

et al. 2022

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Tidal salt marshes are critical protectors of the coast; they buffer against erosion and flooding (Möller et al., 2014), sequester carbon (Chmura et al., 2003), provide habitat to juvenile species and migratory birds (Boesch & Turner, 1984;Hughes, 2004), and filter pollutants and excess nutrients (Sousa et al., 2010). Coastal wetland maintenance involves complex biophysical feedbacks between clastic (i.e., inorganic) sediment supply, nutrients, plant growth, and flooding (Deegan et al., 2012;Kirwan & Megonigal, 2013). Deposition of clastic sediment in the form of clays, silts, and sands allows marshes to accrete faster than would be possible via in-situ organic production alone; thus, the availability and delivery of clastic sediment is a key factor in determining salt marsh resilience to erosion and future sea level rise (e.g.,

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“…Both XRF and LIBS have demonstrated their utility in chemical composition quantication of many different types of materials including geological [10][11][12][13][14][15] and environmental samples. [16][17][18][19] Moreover, both techniques have been validated for use in nuclear chemistry applications, including elemental analysis of uranium ores, 20,21 surrogate nuclear debris, 22 swipe samples 23 and nuclear fuel. 24,25 A 2017 study by Afgan et al implemented a handheld m-LIBS device for quantifying minor elements in steel, achieving measurement errors comparable to those of benchtop LIBS setups and superior to those yielded by commercial XRF instruments.…”

Section: Introductionmentioning

confidence: 99%

Analytical comparisons of handheld LIBS and XRF devices for rapid quantification of gallium in a plutonium surrogate matrix

Rao

Jenkins

Auxier

et al. 2022

J. Anal. At. Spectrom.

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Calibration and Evaluation of an X-Ray Fluorescence Method for the Determination of Lead and Arsenic in Soils

Cited by 7 publications

References 8 publications

A review of pXRF (field portable X-ray fluorescence) applications for applied geochemistry

A review of pXRF (field portable X-ray fluorescence) applications for applied geochemistry

Sources, Mechanisms, and Timescales of Sediment Delivery to a New England Salt Marsh

Analytical comparisons of handheld LIBS and XRF devices for rapid quantification of gallium in a plutonium surrogate matrix

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