PMID- 37031480
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20230430
LR  - 20230430
IS  - 1873-3557 (Electronic)
IS  - 1386-1425 (Linking)
VI  - 296
DP  - 2023 Aug 5
TI  - Time-resolved laser-induced fluorescence spectroscopy and chemometrics for fast 
      identification of U(VI)-bearing minerals in a mining context.
PG  - 122671
LID - S1386-1425(23)00356-6 [pii]
LID - 10.1016/j.saa.2023.122671 [doi]
AB  - We evaluated the potential of time-resolved laser-induced fluorescence 
      spectroscopy (TRLFS) combined with chemometric methods for fast identification of 
      U(VI)-bearing minerals in a mining context. We analyzed a sample set which was 
      representative of several environmental conditions. The set consisted of 80 
      uranium-bearing samples related to mining operations, including natural minerals, 
      minerals with uranium sorbed on the surface, and synthetic phases prepared and 
      characterized specifically for this study. The TRLF spectra were processed using 
      the Ward algorithm and the K-nearest neighbors (KNN) method to reveal 
      similarities between samples and to rapidly identify the uranium-bearing phase 
      and the associated mineralogical family. The predictive models were validated on 
      an independent dataset, and then applied to test samples mostly taken from U mill 
      tailings. Identification results were found to be in accordance with the 
      available characterization data from X-ray diffraction (XRD) and scanning 
      electron microscopy-energy dispersive X-ray spectrometry (SEM-EDX). This work 
      shows that TRLFS can be an effective decision-making tool for environmental 
      investigations or geological prospection, considering the large diversity of 
      uranium-bearing mineral phases and their low concentration in environmental 
      samples.
CI  - Copyright (c) 2023 Elsevier B.V. All rights reserved.
FAU - Sirven, Jean-Baptiste
AU  - Sirven JB
AD  - Universite Paris-Saclay, CEA, Service d'Etudes Analytiques et de Reactivite des 
      Surfaces (SEARS), F-91191 Gif-sur-Yvette, France. Electronic address: 
      jean-baptiste.sirven@cea.fr.
FAU - Szenknect, Stephanie
AU  - Szenknect S
AD  - ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Site de Marcoule, Bagnols-sur-Ceze, 
      France.
FAU - Vors, Evelyne
AU  - Vors E
AD  - Universite Paris-Saclay, CEA, Service d'Etudes Analytiques et de Reactivite des 
      Surfaces (SEARS), F-91191 Gif-sur-Yvette, France.
FAU - Anzalone, Eddie
AU  - Anzalone E
AD  - ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Site de Marcoule, Bagnols-sur-Ceze, 
      France.
FAU - Benarib, Sofian
AU  - Benarib S
AD  - ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Site de Marcoule, Bagnols-sur-Ceze, 
      France.
FAU - Sarr, Papa-Masserigne
AU  - Sarr PM
AD  - Universite Paris-Saclay, CEA, Service d'Etudes Analytiques et de Reactivite des 
      Surfaces (SEARS), F-91191 Gif-sur-Yvette, France.
FAU - Reiller, Pascal E
AU  - Reiller PE
AD  - Universite Paris-Saclay, CEA, Service d'Etudes Analytiques et de Reactivite des 
      Surfaces (SEARS), F-91191 Gif-sur-Yvette, France.
FAU - Mesbah, Adel
AU  - Mesbah A
AD  - IRCELYON, CNRS - UCBL, 2 avenue Albert Einstein, 69626 Villeurbanne Cedex, 
      France.
FAU - Dacheux, Nicolas
AU  - Dacheux N
AD  - ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Site de Marcoule, Bagnols-sur-Ceze, 
      France.
FAU - Vercouter, Thomas
AU  - Vercouter T
AD  - Universite Paris-Saclay, CEA, Service d'Etudes Analytiques et de Reactivite des 
      Surfaces (SEARS), F-91191 Gif-sur-Yvette, France.
FAU - Descostes, Michael
AU  - Descostes M
AD  - ORANO Mining, Environmental R&D Dpt, 125 avenue de Paris, 92320 Chatillon, 
      France; Centre de Geosciences, MINES Paris, PSL Research University, Paris, 
      France.
LA  - eng
PT  - Journal Article
DEP - 20230328
PL  - England
TA  - Spectrochim Acta A Mol Biomol Spectrosc
JT  - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
JID - 9602533
SB  - IM
OTO - NOTNLM
OT  - Chemometrics
OT  - Environment
OT  - Identification
OT  - Speciation
OT  - TRLFS
OT  - Uranium
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/04/10 06:00
MHDA- 2023/04/10 06:01
CRDT- 2023/04/09 18:01
PHST- 2023/01/12 00:00 [received]
PHST- 2023/03/16 00:00 [revised]
PHST- 2023/03/23 00:00 [accepted]
PHST- 2023/04/10 06:01 [medline]
PHST- 2023/04/10 06:00 [pubmed]
PHST- 2023/04/09 18:01 [entrez]
AID - S1386-1425(23)00356-6 [pii]
AID - 10.1016/j.saa.2023.122671 [doi]
PST - ppublish
SO  - Spectrochim Acta A Mol Biomol Spectrosc. 2023 Aug 5;296:122671. doi: 
      10.1016/j.saa.2023.122671. Epub 2023 Mar 28.