[PDF] Top 20 In situ energy dispersive X-ray fluorescence
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In situ energy dispersive X-ray fluorescence
... hole in the rock (2 –3 m deep) with a very wide access, about 3 m high and 2 m wide, but narrowing at the end, with a small white painting as shown in ...Moreover, in the entrance to this cave, a red ... See full document
5
Laser-induced breakdown spectroscopy (LIBS), wavelength dispersive x-ray fluorescence (WDXRF) and chemometrics: possibilities for analytical applications in food analysis
... emission data acquisition step. The instrument contains a high effi- ciency particulate air cleaner (HEPA) to purge the ablated particles and the movement of the sample is automated with a XYZ stage. It also contains a ... See full document
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REVIEW Portable X-ray fluorescence (pXRF) applications in tropical Soil Science
... For in- lab determination, it is recommended to use air-dried soil samples passed through a 2 mm sieve (Laiho; Perämäki, ...obtained in field conditions (e.g., directly in the soil profile) can ... See full document
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Avaliação do uso de laser-induced breakdown spectroscopy (LIBS) e wavelength dispersive x- ray fluorescence (WDXRF) na análise direta de couros naturais e sintéticos
... waste in all production processes, but the tanning is particu- larly worrisome due to the use of significant amounts of ...come in contact with human skin when using leather goods, which can cause allergies ... See full document
212
The use of wavelength-dispersive x-ray fluorescence (WDXRF) spectroscopy and multivariate techniques for the assessment of illegal dyes in spices
... elements in the measured sample to that of the cellulose ...matrices. In relation with the Compton ratio, the Rayleigh ratio gives information regarding the appropriateness of matrix simulation considering ... See full document
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Archaeometric analysis of Tupiguarani pottery from the central region of the Rio Grande do Sul State, Brazil, by energy dispersive X-ray fluorescence (EDXRF).
... BY ENERGY DISPERSIVE X-RAY FLUORESCENCE ...(EDXRF). Energy dispersive X-ray fluorescence methodology (EDXRF) was used to determine Al, Ba, Ca, Cr, Fe, ... See full document
6
Fast x-ray fluorescence microtomography of hydrated biological samples.
... developments in detector technology that have increased detection efficiency by an order of magnitude and reduced per-pixel overheads to negligible ...3D fluorescence tomogra- phy of the diatom Cyclotella ... See full document
5
Quantitative determinations and imaging in different structures of buried human bones from the XVIII-XIXth centuries by energy dispersive X-ray fluorescence - Postmortem evaluation
... Energy Dispersive X-ray Fluorescence (EDXRF) technique is a widespread fully matured instrumental analytical ...role in biological samples analysis providing non-de- structive ... See full document
9
X-ray fluorescence analysis using a standardless method
... created in C++, as open source, by a worlwide collaboration of physicists and software ...energies. In some cases the energy range of implementation cover from 1 eV to 1 ...available in the ... See full document
182
Energy-dispersive X-ray absorption spectroscopy at LNLS: investigation on strongly correlated metal oxides
... The 2 optical bench (Fig. 7, see also Fig. 2) is made of a steel-framed 3 m-long granite block, with two main steel rails screwed directly onto aluminium reference pads aligned on the granite block. The optical bench ... See full document
10
Chemical elements characterization of root canal sealers using scanning electron microscopy and energy dispersive x-ray analysis
... eugenol in their composition, a compound known for its cytotoxic effects to human cells ...zinc in Pulp Canal Sealer ® , along with Al and ...found in Endofill ® , a sealer with cytotoxic ... See full document
8
Use of Monte Carlo Simulation as a Tool for the Nondestructive Energy Dispersive X- ray Fluorescence (ED-XRF) Spectroscopy Analysis of Archaeological Copper-Based Artifacts from the Chalcolithic Site of Perdigões, Southern Portugal
... advance in routine elemental analysis of metals covered by a corroded/encrusted stratum, being able to establish itself as a solid alternative to more conventional quantitative methods and proving to be a useful, ... See full document
20
Frequencies of X-ray induced chromosome aberrations in lymphocytes of xeroderma pigmentosum and Fanconi anemia patients estimated by Giemsa and fluorescence in situ hybridization staining techniques
... not significantly higher than that of dicentrics. Natarajan et al. (1996) explained this by suggesting that if one con- fines scoring only to reciprocal translocations, ignoring other types such as terminal and ... See full document
8
Energy dispersive X-ray fluorescence spectroscopy/Monte Carlo simulation approach for the non-destructive analysis of corrosion patina-bearing alloys in archaeological bronzes: The case of the bowl from the Fareleira 3 site (Vidigueira, South Portugal)
... The key idea of this paper is to construct a model of the experiment as well as one of the sample multilayered structure and then run itera- tively the Monte Carlo until the simulated spectrum is an almost perfect ... See full document
5
Detection of biometals signature of brain tissues by X-ray fluorescence
... continuous X-ray spectrum (Bremsstrahlung radiation) or the characteristic fluorescence X-rays of the target ...represented in figure 1.3 below [18]. In most XRF systems the beam ... See full document
82
Assembly of a portable X-ray fluorescence spectrometer with tri-axial geometry
... of X-ray spectrometry ...on X-ray emission and production phenomena, as well as in other interaction ...The X-ray is an electromagnetic radiation that can suffer ... See full document
98
Elementary Chemical Analysis in Leaves Infected by Fumagina by X-Ray Fluorescence Technique
... Fe X-ray ...detector, in order to minimize the detection of dispersed radiation produced by the experimental arrangement and also to reduce the dead ...Instrumentation in the Center of Nuclear ... See full document
10
Determination of nickel and manganese contaminants in pharmaceutical iron supplements using energy dispersive X-ray fluorescence
... All of the pills tested were crushed, and the protective capsule was removed. The powder was then compressed with 10 tons of pressure into pellets 2.0 cm in diameter and 1 mm in thickness, without any ... See full document
8
Portable energy dispersive X-ray fluorescence for metal determination of in natura water samples
... quantitative in situ analysis of in natura ...limits, in mg L-1, for Cr, Mn, Fe, Co, Ni, Cu, Zn, Se, Hg and Pb were ...10%. In real samples, Fe, Zn and Pb were identifi ... See full document
11
Simple procedure for nutrient analysis of coffee plant with energy dispersive X-ray fluorescence spectrometry (EDXRF)
... observed in P and K con- tents even in the control ...stable in all ...found in higher concentration in the branches than in the ...reported in the literature suggesting ... See full document
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