Applicability of direct total reflection X-ray fluorescence spectrometry for multielement analysis of geological and environmental objects

Cherkashina, T. Yu.; Panteeva, Svetlana V.; Pashkova, Galina V.

doi:10.1016/j.sab.2014.05.013

Cited by 47 publications

(15 citation statements)

References 18 publications

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“…() and Cherkashina et al. (). Two representative samples were extracted from the brittle silicate melt particle using a binocular.…”

Section: Samples and Analytical Methodsmentioning

confidence: 99%

“…The basic principles of this method were explained by Klockenk€ amper and von Bohlen (2015). Detailed technical specifications of this instrument are given by Stosnach (2005); its application for the analysis of geological materials was described by Marks et al (2012) and Cherkashina et al (2014). Two representative samples were extracted from the brittle silicate melt particle using a binocular.…”

Section: Samples and Analytical Methodsmentioning

confidence: 99%

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Evidence for shock‐induced anhydrite recrystallization and decomposition at the UNAM‐7 drill core from the Chicxulub impact structure

Salge

Stosnach

Rosatelli

et al. 2019

Meteorit & Planetary Scien

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Drill core UNAM‐7, obtained 126 km from the center of the Chicxulub impact structure, outside the crater rim, contains a sequence of 126.2 m suevitic, silicate melt‐rich breccia on top of a silicate melt‐poor breccia with anhydrite megablocks. Total reflection X‐ray fluorescence analysis of altered silicate melt particles of the suevitic breccia shows high concentrations of Br, Sr, Cl, and Cu, which may indicate hydrothermal reaction with sea water. Scanning electron microscopy and energy‐dispersive spectrometry reveal recrystallization of silicate components during annealing by superheated impact melt. At anhydrite clasts, recrystallization is represented by a sequence of comparatively large columnar, euhedral to subhedral anhydrite grains and smaller, polygonal to interlobate grains that progressively annealed deformation features. The presence of voids in anhydrite grains indicates SOx gas release during anhydrite decomposition. The silicate melt‐poor breccia contains carbonate and sulfate particles cemented in a microcrystalline matrix. The matrix is dominated by anhydrite, dolomite, and calcite, with minor celestine and feldspars. Calcite‐dominated inclusions in silicate melt with flow textures between recrystallized anhydrite and silicate melt suggest a former liquid state of these components. Vesicular and spherulitic calcite particles may indicate quenching of carbonate melts in the atmosphere at high cooling rates, and partial decomposition during decompression at postshock conditions. Dolomite particles with a recrystallization sequence of interlobate, polygonal, subhedral to euhedral microstructures may have been formed at a low cooling rate. We conclude that UNAM‐7 provides evidence for solid‐state recrystallization or melting and dissociation of sulfates during the Chicxulub impact event. The lack of anhydrite in the K‐Pg ejecta deposits and rare presence of anhydrite in crater suevites may indicate that sulfates were completely dissociated at high temperature (T > 1465 °C)—whereas ejecta deposited near the outer crater rim experienced postshock conditions that were less effective at dissociation.

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“…() and Cherkashina et al. (). Two representative samples were extracted from the brittle silicate melt particle using a binocular.…”

Section: Samples and Analytical Methodsmentioning

confidence: 99%

Section: Samples and Analytical Methodsmentioning

confidence: 99%

Evidence for shock‐induced anhydrite recrystallization and decomposition at the UNAM‐7 drill core from the Chicxulub impact structure

Salge

Stosnach

Rosatelli

et al. 2019

Meteorit & Planetary Scien

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“…During aging, samples were stored in blow glassware laboratory at room temperature. Elemental chemical analysis of leaching solutions was performed using Total reflection X-Ray Fluorescence (TXRF) spectroscopy [10], employing a S2 Picofox system from Bruker (Bruker AXS Microanalysis GmbH, Berlin, Germany) equipped with Mo tube operating at 50 kV and 750 μA and a Silicon Drift Detector (SDD) [11]. A stock solution of 1 g/L Ga in nitric acid (Ga-ICP Standard Solution, Fluka, Sigma Aldrich, Saint Louis, MO, USA) was used as an internal standard in order to calculate the concentration of interested analytes.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Dataset on the use of metal hydroxides, instead of flue gas desulfurization residues, to stabilize fly ash by using bottom ash

et al. 2020

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Municipal solid waste incineration (MSWI) provides significant benefits on waste treatment technologies. Nevertheless some by-products such as fly ash (FA) and bottom ash (Ash) are produced in the incineration plant. Indeed, FA is considered a toxic waste due to the presence of leachable heavy metals (i.e Zn, Cd, Pb, Hg) and metalloid (like As). This data article aims to investigate the reactivity of Ca(OH)2 and Mg(OH)2 as possible substitute of flue gas desulfurization (FGD) residues by mixing with FA, BA and silica fume through a low cost technology. To assess the immobilization process of heavy metals and metalloid, three different samples' compositions were prepared for Ca(OH)2 and Mg(OH)2 series, respectively. Elemental chemical analysis of leaching solutions were carried out by Total reflection X-Ray Fluorescence spectroscopy (TXRF). Data revealed that mixing municipal solid waste ashes with Mg(OH)2 decrease significantly Pb and Zn leachability after two months, and reduce their environmental impact in landfill.

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“…It is a non-destructive technique, it requires a single standard internal calibration, it allows different types of samples (liquids, solutions, powder, suspensions, solid, thin films, aerosols) and it is possible to avoid digestion procedure. In addition, it is fast, simple, and it allows to detect and to quantify a great number of elements simultaneously from Na until U (including trace, ultra-trace and halogens) in ppb concentration until percent, it requires small sample amounts, it has high-sensitivity, low detection limits and it is inexpensive since it does not [12] Human serum Acid digestion Cu Lankosz, et al [13] Brain tumors Acid digestion Ca, Cu, Fe, K, Rb, Zn de Oliveira, et al [14] Honey Suspensions Br, Ca, Cr, Cu, Fe, K, Mn, Ni, Se, Sr, Ti, Zn Li, et al [15] Dwarf cherry Acid digestion Ca, Cu, Fe, K, Mn, P, Rb, S, Sr, Zn Marguí, et al [16] Edible clams Acid digestion Minor and trace elements…”

Section: Multi-elemental Analysis By Total Reflection X-ray Fluorescencementioning

confidence: 99%

Total Reflection X-Ray Fluorescence: A Valuable Analytic Tool for Environmental and Biological Studies

Salomone¹,

Riera²,

Muniain³

2017

Int J Exp Spectroscopic Tech

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This review collects the research of the recent years on biological or environmental studies in which Total Reflection X-Ray Fluorescence Spectrometry (TXRF) was used as a chemical analytical technique for quantification of elemental content. Although it is not a novel technique, its application in biological and environmental samples has extended in the last years.TXRF is a useful analytical technique used for simultaneous qualitative and quantitative determination of a wide range of chemical elements, from sodium until uranium, including halogens with low matrix interferences. The major advantages of this technique include the small amount of sample required and the relative simplicity of sample preparation. Direct analysis of samples is also possible, shortening preparation time, reducing reactive consumption, and simplifying the whole analysis process. Furthermore, the low detection limit makes TXRF an excellent technique for the determination of ultra-trace, trace and major elements (concentrations range from ppb to percent) in environmental and biological samples.

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Applicability of direct total reflection X-ray fluorescence spectrometry for multielement analysis of geological and environmental objects

Cited by 47 publications

References 18 publications

Evidence for shock‐induced anhydrite recrystallization and decomposition at the UNAM‐7 drill core from the Chicxulub impact structure

Evidence for shock‐induced anhydrite recrystallization and decomposition at the UNAM‐7 drill core from the Chicxulub impact structure

Dataset on the use of metal hydroxides, instead of flue gas desulfurization residues, to stabilize fly ash by using bottom ash

Total Reflection X-Ray Fluorescence: A Valuable Analytic Tool for Environmental and Biological Studies

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