Multi-block analysis coupled to laser-induced breakdown spectroscopy for sorting geological materials from caves

Ammari, Faten; Bassel, Léna; Ferrier, Catherine; Lacanette, Delphine; Chapoulie, Rémy; Bousquet, Bruno

doi:10.1016/j.talanta.2016.06.052

Cited by 15 publications

(3 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the aim of analysing large archaeological collections, also including museum collections, and in order to have both a statistical view and identify potential outliers by increasing the number of studied artefacts, the use of portable instruments becomes indispensable. In this sense, laser-induced breakdown spectroscopy (LIBS) presents itself as a portable and fast solution for in situ analysis, having been miniaturised in portable modules available commercially, and widely used for geochemical classification (Ammari et al, 2016;El-Saeid et al, 2019;Fabre et al, 2022;Gottfried et al, 2009;Harmon et al, 2009Harmon et al, , 2018Harmon & Senesi, 2021;Kim et al, 2022;Rai et al, 2017;Rakovský et al, 2012;Syvilay et al, 2019), including in complex conditions without sample preparation and chemical treatment such as on the Mars rovers Curiosity and Perseverance (Anderson et al, 2022;Clave et al, 2022;Maurice et al, 2016;Sirven et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Chert sourcing using LIBS: The case of Cova del Parco, Spain

Le Guirriec,

Sánchez de la Torre,

Bousquet

et al. 2024

Archaeometry

Self Cite

View full text Add to dashboard Cite

Cherts originating from carbonate lacustrine environments have been widely exploited by Upper Palaeolithic hunter‐gatherers in the south of the Pyrenees. Archaeo‐petrographic sourcing studies have identified different potential sources but were unable to distinguish them. This study conducted geochemical characterisation of geological and archaeological lacustrine chert samples using laser‐induced breakdown spectroscopy (LIBS), and applied the supervised classification model partial least squares–discriminant analysis to LIBS spectra. The model was able to discriminate geological sources and provide predictions for the origin of a selection of chert artefacts recovered at the Middle Magdalenian level from Cova del Parco (Lleida, Spain).

show abstract

Section: Introductionmentioning

confidence: 99%

Chert sourcing using LIBS: The case of Cova del Parco, Spain

Le Guirriec,

Sánchez de la Torre,

Bousquet

et al. 2024

Archaeometry

Self Cite

View full text Add to dashboard Cite

show abstract

“…CCSWA has since been used to study samples analyzed on different instruments, to find relationships between tables and to discriminate samples on the basis of the global information included in all tables. For example, Ammari et al 37 have studied the recognition of geological material by means of laser-induced spectroscopy, coupled with three different spectrometers. They used CCSWA to analyze jointly the signals delivered by the three devices and to retrieve the best wavelength regions.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Ammari et al. 37 have studied the recognition of geological material by means of laser-induced spectroscopy, coupled with three different spectrometers. They used CCSWA to analyze jointly the signals delivered by the three devices and to retrieve the best wavelength regions.…”

Section: Introductionmentioning

confidence: 99%

Multiangle near infrared spectroscopy associated with common components and specific weights analysis for in line monitoring

Rey-Bayle

Bendoula

Caillol³

et al. 2019

Journal of Near Infrared Spectroscopy

View full text Add to dashboard Cite

Near infrared spectroscopy offers a number of important advantages for process monitoring. In addition to its numerous practical advantages, an important reason to use near infrared spectroscopy for process monitoring is its ability to supply versatile and multivariate information. However, in heterogeneous samples the interaction of light is complex and includes transmission, absorption, and scattering simultaneously which all affect spectra. The measurement of the signal at one point may be insufficient. A solution is to measure the medium at several points and to use specific multivariate analysis. In our study we propose to associate multipoint measurements with a common components and specific weight analysis. We monitored two media online by angular multipoint near infrared spectroscopy. For the first medium, in which only the scattering varies over time, the precipitation of silica was chosen to illustrate such a medium. For the second medium, both scattering and absorption vary, whereby microemulsions implemented for enhanced oil recovery illustrate this medium. The results showed, by combining multiangle measurements to common components and specific weight analysis, the interest of measuring at different angles. In the first case, two scattering regimes have been identified and it was possible to access the anisotropy coefficient during the silica precipitation reaction. In the second case study, on microemulsions, it was possible to identify the different phases and to separate the phenomena related to absorption and those related to diffusion. These encouraging results validate the interest of coupling multiangle measurements with multivariate multiblock analysis tools.

show abstract