| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Michel, Karine
Bureau de Recherches Géologiques et Minières
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Surface functionalization of a chalcogenide IR photonic sensor by means of a polymer membrane for water pollution remediationcitations
- 2022Improvement of the sensitivity of chalcogenide-based infrared sensors dedicated to the in situ detection of organic molecules in aquatic environment
- 2021Toward Chalcogenide Platform Infrared Sensor Dedicated to the In Situ Detection of Aromatic Hydrocarbons in Natural Waters via an Attenuated Total Reflection Spectroscopy Studycitations
- 2018Infrared-Sensor Based on Selenide Waveguide Devoted to Water Pollution
- 2018Infrared sulfide fibers for all-optical gas detectioncitations
- 2017Infrared sensor for water pollution and monitoringcitations
- 2017Theoretical study of an evanescent optical integrated sensor for multipurpose detection of gases and liquids in the Mid-Infraredcitations
- 2016Fiber evanescent wave spectroscopy based on IR fluorescent chalcogenide fiberscitations
- 2014108mAg tracer diffusion in HgI2–Ag2S–As2S3 glass systemcitations
- 2014108mAg tracer diffusion in HgI2–Ag2S–As2S3 glass systemcitations
- 2013Chalcogenide Glasses Developed for Optical Micro-sensor Devices
- 2013Study of the pseudo-ternary Ag2S-As2S3-HgI2 vitreous systemcitations
- 2013Study of the pseudo-ternary Ag2S-As2S3-HgI2 vitreous systemcitations
- 2012Evanescent wave optical micro-sensor based on chalcogenide glasscitations
- 2012Use of Raman spectroscopy to characterize and distinguish minerals of the alunite supergroup
- 2012Optical sensor based on chalcogenide glasses for IR detection of bio-chemical entities
- 2011In Situ Semi-Quantitative Analysis of Polluted Soils by Laser-Induced Breakdown Spectroscopy (LIBS)citations
- 2009Infrared monitoring of underground CO2 storage using chalcogenide glass fiberscitations
- 2009Rare-earth doped chalcogenide optical waveguide in near and mid-IR for optical potential application
- 2009Infrared optical sensor for CO2 detectioncitations
- 2004Optical analysis of infrared spectra recorded with tapered chalcogenide glass fiberscitations
- 2004Réalisation d'un capteur à fibre optique infrarouge pour la détection des polluants dans les eaux usées
- 2003Development of a chalcogenide glass fiber device for in situ pollutant detectioncitations
- 2002Infrared glass fibers for in-situ sensing, chemical and biochemical reactionscitations
Places of action
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article
In Situ Semi-Quantitative Analysis of Polluted Soils by Laser-Induced Breakdown Spectroscopy (LIBS)
Abstract
Time-saving, low-cost analyses of soil contamination are required to ensure fast and efficient pollution removal and remedial operations. In this work, laser-induced breakdown spectroscopy (LIBS) has been successfully applied to in situ analyses of polluted soils, providing direct semi-quantitative information about the extent of pollution. A field campaign has been carried out in Brittany (France) on a site presenting high levels of heavy metal concentrations. Results on iron as a major component as well as on lead and copper as minor components are reported. Soil samples were dried and prepared as pressed pellets to minimize the effects of moisture and density on the results. LIBS analyses were performed with a Nd:YAG laser operating at 1064 nm, 60 mJ per 10 ns pulse, at a repetition rate of 10 Hz with a diameter of 500 lm on the sample surface. Good correlations were obtained between the LIBS signals and the values of concentrations deduced from inductively coupled plasma atomic emission spectroscopy (ICP-AES). This result proves that LIBS is an efficient method for optimizing sampling operations. Indeed, ''LIBS maps'' were established directly on-site, providing valuable assistance in optimizing the selection of the most relevant samples for future expensive and time-consuming laboratory analysis and avoiding useless analyses of very similar samples. Finally, it is emphasized that in situ LIBS is not described here as an alternative quantitative analytical method to the usual laboratory measurements but simply as an efficient time-saving tool to optimize sampling operations and to drastically reduce the number of soil samples to be analyzed, thus reducing costs. The detection limits of 200 ppm for lead and 80 ppm for copper reported here are compatible with the thresholds of toxicity; thus, this in situ LIBS campaign was fully validated for these two elements. Consequently, further experiments are planned to extend this study to other chemical elements and other matrices of soils.