Standardless semi-quantitative analysis by PIXE

Rodríguez, T.; Limandri, Silvina P.; Suárez, S.; Ortega-Feliú, I.; Trincavelli, J.

doi:10.1039/c7ja00068e

Cited by 5 publications

(4 citation statements)

References 41 publications

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“…Rodríguez et al . () describe the main characteristics of the software PAMPA (Parameter Assessment Method for PIXE Analysis) and demonstrate its ability for semiquantitative PIXE analysis without reference materials. Description of PIXE spectra is based on the refinement of atomic and experimental parameters and minimises the quadratic differences between an experimental spectrum and an analytical function proposed to describe it.…”

Section: Advances In Accelerator‐based Methodsmentioning

confidence: 99%

GGR Biennial Critical Review: Analytical Developments Since 2014

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et al. 2017

Geostandard Geoanalytic Res

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This GGR biennial critical review covers developments and innovations in key analytical methods published since January 2014, relevant to the chemical, isotopic and crystallographic characterisation of geological and environmental materials. In nine selected analytical fields, publications considered to be of wide significance are summarised, background information is provided and their importance evaluated. In addition to instrumental technologies, this review also presents a summary of new developments in the preparation and characterisation of rock, microanalytical and isotopic reference materials, including a précis of recent changes and revisions to ISO guidelines for reference material characterisation and reporting. Selected reports are provided of isotope ratio analyses by both solution-nebulisation MC-ICP-MS and laser ablation-ICP-MS, as well as of radioactive isotope geochronology by LA-ICP-MS. Most of the analytical techniques elaborated continue to provide new applications for geochemical analysis, however it is noted that instrumental neutron activation analysis has become less popular in recent years, mostly due to the reduced availability of nuclear reactors to act as a neutron source. Many of the newer applications reported here provide analysis at increasingly finer resolution. Examples include atom probe tomography, a very sensitive method providing atomic scale information, nanoscale SIMS, for isotopic imaging of geological and biological samples, and micro-XRF, which has a spatial resolution many orders of magnitude smaller than conventional XRF

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Section: Advances In Accelerator‐based Methodsmentioning

confidence: 99%

GGR Biennial Critical Review: Analytical Developments Since 2014

Linge

Bèdard

Bugoi

et al. 2017

Geostandard Geoanalytic Res

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show abstract

“…Line widths and asymmetries were analysed and determined in a previous work. 16 The two parameters associated with the background model in the PAMPA code were set to be optimized.…”

Section: Spectral Analysismentioning

confidence: 99%

“…As was mentioned before, the collected spectra were processed using a novel software for PIXE semi-quantitative analysis. 16 Some of the advantages of PAMPA compared to other PIXE spectrum analysis software are that it considers all user-input characteristic lines for fitting, not just the main lines of each group. This is particularly important in this case where we need the areas of all peaks associated with an M subshell.…”

Section: Spectral Analysismentioning

confidence: 99%

“…The sample was irradiated in a tandem accelerator with protons of energies between 0.3 and 3.4 MeV. The collected spectra were analysed with a novel software for PIXE (proton-induced X-ray emission) semi-quantification 16 called PAMPA. This software allows the fitting of the characteristic X-ray lines taking into account X-ray production, absorption and detection phenomena.…”

Section: Introductionmentioning

confidence: 99%

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