Multivariate approach to the chemical mapping of uranium in sandstone-hosted uranium ores analyzed using double pulse Laser-Induced Breakdown Spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F16%3A00090622" target="_blank" >RIV/00216224:14310/16:00090622 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/16:PU119891 RIV/68407700:21340/16:00308945
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S058485471630146X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S058485471630146X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.sab.2016.08.014" target="_blank" >10.1016/j.sab.2016.08.014</a>

Result language
angličtina
Original language name
Multivariate approach to the chemical mapping of uranium in sandstone-hosted uranium ores analyzed using double pulse Laser-Induced Breakdown Spectroscopy
Original language description
This work is focused on the high resolution mapping of uranium in sandstone-hosted uranium ores using Laser-Induced Breakdown Spectroscopy technique. In order to obtain chemical image with highest possible spatial resolution, LIBS system in orthogonal double pulse arrangement was employed. Owing to this experimental arrangement the spot size of 50 um in diameter resulting in lateral resolution of 100 um was reached. Despite the increase in signal intensity in DP LIBS modification, the detection of uranium is challenging. The main cause is the high density of uranium spectral lines, which together with broadening of LIBS spectral lines overreaches the resolution of commonly used spectrometers. It results in increased overall background radiation with only few distinguishable uranium lines. Three different approaches in the LIBS data treatment for the uranium detection were utilized: i) spectral line intensity, ii) region of apparent background and iii) multivariate data analysis.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CB - Analytical chemistry, separation
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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