Chemical characterization of particulate matter suspended in the atmosphere by energy dispersive X-ray fluorescence (EDXRF)

2006 ◽  
Vol 270 (1) ◽  
pp. 43-46 ◽  
Author(s):  
F. Lopes ◽  
C. R. Appoloni ◽  
V. F. Nascimento ◽  
F. L. Melquiades ◽  
L. C. Almeida
Keyword(s):  
Particulate Matter ◽  
Chemical Characterization ◽  
Energy Dispersive ◽  
X Ray

Handheld Portable Energy-Dispersive X-Ray Fluorescence Spectrometry (pXRF)

2016 ◽  
pp. 362-381 ◽  
Author(s):  
Elisabeth Holmqvist
Keyword(s):  
Production Systems ◽  
Matrix Effects ◽  
Chemical Characterization ◽  
High Sensitivity ◽  
Limited Range ◽  
Energy Dispersive ◽  
Analytical Sensitivity ◽  
X Ray ◽  
Non Destructive

Handheld portable energy-dispersive X-ray fluorescence (pXRF) spectrometry is used for non-destructive chemical characterization of archaeological ceramics. Portable XRF can provide adequate analytical sensitivity to discriminate geochemically distinct ceramic pastes, and to identify compositional clusters that correlate with data patterns acquired by NAA or other high sensitivity techniques. However, successful non-destructive analysis of unprepared inhomogeneous ceramic samples requires matrix-defined scientific protocols to control matrix effects which reduce the sensitivity and precision of the instrumentation. Quantification of the measured fluorescence intensities into absolute concentration values and detection of light elements is encumbered by the lack of matrix matched calibration and proper vacuum facilities. Nevertheless, semi-quantitative values for a limited range of high Z elements can be generated. Unstandardized results are difficult to validate by others, and decreased analytical resolution of non-destructive surface analysis may disadvantage site-specific sourcing, jeopardize correct group assignments, and lead to under-interpretation of ceramic craft and production systems.

scholarly journals Characterization of Inhalable Particulate Matter in Ambient Air by Scanning Electron Microscopy and Energy-Dispersive X-ray Analysis

2009 ◽  
Vol 15 (S2) ◽  
pp. 1320-1321 ◽  
Author(s):  
R Ramirez-Leal ◽  
HE Esparza-Ponce ◽  
A Varela-Sortillón ◽  
A Astorga-Reyes ◽  
A Roman-B.
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Particulate Matter ◽  
Ambient Air ◽  
Energy Dispersive ◽  
X Ray ◽  
Inhalable Particulate Matter ◽  
Scanning Electron

Extended abstract of a paper presented at Microscopy and Microanalysis 2009 in Richmond, Virginia, USA, July 26 – July 30, 2009

Chemical Characterization of Organic Residues in Agroindustrial and Urban Waste using Energy Dispersive X-ray Fluorescence Spectrometry

2015 ◽  
Vol 46 (6) ◽  
pp. 699-708 ◽  
Author(s):  
Arci D. Wastowski ◽  
Vanderlei R. da Silva ◽  
Maurício R. Cherubin ◽  
Moacir T. de Moraes ◽  
João P. G. Rigon ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Energy Dispersive ◽  
Fluorescence Spectrometry ◽  
Organic Residues ◽  
Urban Waste ◽  
X Ray

scholarly journals Chemical characterization of fine particulate matter, source apportionment and long-range transport clusters in Thohoyandou, South Africa

2020 ◽  
Vol 30 (2) ◽  
Author(s):  
Rirhandzu J. Novela ◽  
Wilson M. Gitari ◽  
Hector Chikoore ◽  
Peter Molnar ◽  
Rabelani Mudzielwana ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Source Apportionment ◽  
Fine Particulate Matter ◽  
Chemical Characterization ◽  
Long Range Transport ◽  
Industrial Emissions ◽  
X Ray ◽  
Fine Particulate ◽  
Range Transport

This paper presents a chemical characterization of fine particulate matter in air masses passing through Thohoyandou and further determines their sources. Fine particulate matter (PM2.5) was collected and quantified using gravimetric method. X-ray fluorescence, Smoke stain reflectometer, Optical Transmissometer and Scanning Electron Microscopy- Energy Dispersive X-Ray Spectroscopy were used to determine the chemical and morphological composition of the particulate matter. The source apportionment was done using principal component analysis while the HYSPLIT model was used to depict the long-range transport clusters. The mean of concentrations of PM2.5, soot, black carbon and UVPM were 10.9 μg/m3, 0.69x10-5 m-1, 1.22 μg/m3 and 1.40 μg/m3, respectively. A total of 24 elements were detected in the PM2.5 with Pd, Sn, Sb, Mg, Al and Si being the dominant elements. SEM-EDS have shown the presence of irregular, flat and spherical particles which is associated with crustal material and industrial emissions. Source apportionment analysis revealed six major sources of PM2.5 in Thohoyandou namely, crustal materials, industrial emissions, vehicular emissions, urban emissions, fossil fuel combustion and fugitive-Pd. Air parcels that pass-through Thohoyandou were clustered into four. The major pathways were from the SW Indian Ocean, Atlantic Ocean and inland trajectories. Clusters from the ocean are associated with low concentration, while inland clusters are associated with high concentration of PM2.5. The PM2.5 occasionally exceeds the WHO daily guideline in Thohoyandou and the sources of PM2.5 extend beyond the borders. This study recommends that further studies need to be carried out to assess the health impacts of PM2.5 in Thohoyandou.

First characterization of chemical environments using energy dispersive inelastic x-ray scattering induced by an x-ray tube

2021 ◽  
Vol 92 (1) ◽  
pp. 013102
Author(s):  
Roberto Daniel Pérez ◽  
Juan José Leani ◽  
José Ignacio Robledo ◽  
Héctor Jorge Sánchez
Keyword(s):  
Energy Dispersive ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering
Sign in / Sign up

Export Citation Format

Share Document