Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Sari Romppanen"'
Publikováno v:
University of Helsinki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::168cf36f7030eb742e8e9f3580935c92
http://hdl.handle.net/10138/353085
http://hdl.handle.net/10138/353085
Autor:
Juha Kostamovaara, Ilkka Nissinen, Heikki Häkkänen, Jere Kekkonen, Sari Romppanen, Jan Nissinen, Saara Kaski
Publikováno v:
Journal of Raman Spectroscopy. 51:1462-1469
Raman 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
Laser-induced time-resolved luminescence was used to study rare earth element (REE) containing natural apatite and calcite minerals. The luminescence from 400 nm to 700 nm in the minerals was analyzed with excitation ranges 210–340 nm and 405–535
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eb26fa98ef60c6a55d32957087773a7
http://urn.fi/URN:NBN:fi:jyu-202105313314
http://urn.fi/URN:NBN:fi:jyu-202105313314
Mapping with laser-induced breakdown spectroscopy (LIBS) can offer more than just the spatial distribution of elements: the rich spectral information also enables mineral recognition. In the present study, statistical approaches were used for the rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::938952160a44f41b85fc7cbd1c33296b
http://urn.fi/URN:NBN:fi:jyu-202111175691
http://urn.fi/URN:NBN:fi:jyu-202111175691
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 134:69-74
Laser-induced breakdown spectroscopy (LIBS) has been used in analysis of rare earth element (REE) ores from the geological formation of Norra Kärr Alkaline Complex in southern Sweden. Yttrium has been detected in eudialyte (Na15 Ca6(Fe,Mn)3 Zr3Si(Si