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dc.contributor.authorRomppanen, Sari
dc.contributor.authorHäkkänen, Heikki
dc.contributor.authorKekkonen, Jere
dc.contributor.authorNissinen, Jan
dc.contributor.authorNissinen, Ilkka
dc.contributor.authorKostamovaara, Juha
dc.contributor.authorKaski, Saara
dc.date.accessioned2020-01-07T11:50:34Z
dc.date.available2020-05-17T21:35:15Z
dc.date.issued2020
dc.identifier.citationRomppanen, S., Häkkänen, H., Kekkonen, J., Nissinen, J., Nissinen, I., Kostamovaara, J., & Kaski, S. (2020). Time-gated Raman and laser-induced breakdown spectroscopy in mapping of eudialyte and catapleiite. <i>Journal of Raman Spectroscopy</i>, <i>51</i>(9), 1462-1469. <a href="https://doi.org/10.1002/jrs.5622" target="_blank">https://doi.org/10.1002/jrs.5622</a>
dc.identifier.otherCONVID_30676498
dc.identifier.otherTUTKAID_81451
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/67133
dc.description.abstractRaman analysis of rock samples containing rare earth elements (REEs) is challenging due to the strong fluorescence, which may mask the weaker Raman signal. In this research, time‐gated (TG) Raman has been applied to the construction of the mineral distribution map from REE‐bearing rock. With TG Raman, material is excited with a short subnanosecond laser pulse, and the Raman signal is collected within a picosecond‐scale time window prior to the formation of a strong fluorescent signal by means of single‐photon avalanche diode array. This allows signal readout with a significantly reduced fluorescence background. TG Raman maps are used to reveal the location of valuable minerals and are compared with the elemental distribution given by laser‐induced breakdown spectroscopy. The analysis was carried out from a REE‐bearing rock, nepheline syenite sample from the Norra Kärr deposit, where REEs are mainly hosted in eudialyte and catapleiite. The combination of these two complimentary laser spectroscopic methods offers valuable elemental and mineralogical information about rocks.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherJohn Wiley & Sons Ltd.
dc.relation.ispartofseriesJournal of Raman Spectroscopy
dc.rightsIn Copyright
dc.subject.otherlaser-induced breakdown spectroscopy (LIBS)
dc.subject.othermineral mapping
dc.subject.otherREE&-bearing minerals
dc.subject.otherrock analysis
dc.subject.othertime-gated Raman
dc.titleTime-gated Raman and laser-induced breakdown spectroscopy in mapping of eudialyte and catapleiite
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202001031025
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosKemian laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.laitosDepartment of Chemistryen
dc.contributor.oppiaineSolu- ja molekyylibiologiafi
dc.contributor.oppiaineFysikaalinen kemiafi
dc.contributor.oppiaineCell and Molecular Biologyen
dc.contributor.oppiainePhysical Chemistryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2020-01-03T13:15:10Z
dc.description.reviewstatuspeerReviewed
dc.format.pagerange1462-1469
dc.relation.issn0377-0486
dc.relation.numberinseries9
dc.relation.volume51
dc.type.versionacceptedVersion
dc.rights.copyright© 2019 John Wiley & Sons, Ltd.
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber282240
dc.relation.grantnumber281955
dc.subject.ysospektroskopia
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p10176
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1002/jrs.5622
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderAcademy of Finlanden
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramAcademy Project, AoFen
jyx.fundinginformationThe work has been funded by the Academy of Finland (decision number 281955 for S. R. and S. K., 282240 for H. H., 292609 for J. Ko, and 282405 for J. Ke, I. N., J. N., and J.Ko. S. R. would also like to thank the Finnish Society of Sciences and Letters as well as Società Italiana di Mineralogia e Petrologia for the travel grants, which gave opportunity to present the related results in GeoRaman 2018 conference. The analysed sample was provided by Tasman Metals AB (now Leading Edge Materials).


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