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Laser-induced luminescence of rare-earth elements in natural fluor-apatites

Reisfeld, Renata
Gaft, M.
Boulon, G.
Panczer, C.
Published in Journal of Luminescence. 1996, vol. 69, no. 5-6, p. 343-353
Abstract The luminescence spectra of naturally occurring fluor-apatites containing traces of rare-earth elements have been compared with synthetic fluor-apatites to which single rare-earth elements have been intentionally added. Comparison of the laser-induced spectra obtained after different time delays allows identification of the following luminescence centers: Ce³⁺, Pr³⁺, Nd³⁺, Sm³⁺, Eu³⁺, Tb³⁺, Dy³⁺, Er³⁺, Tm³⁺, Yb³⁺ and possibly Yb²⁺. The technique described here allowed for the first time to detect the luminescence of Pr³⁺, Eu³⁺, Er³⁺, Tm³⁺ and Yb³⁺ in natural apatites. Our results were compared with those obtained by ICP and correspondence was observed between the two methods. Our findings allow non-destructive detection by laser light of the different rare-earth elements in apatite minerals.
Keywords LantanidesApatitesFluorescence
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REISFELD, Renata et al. Laser-induced luminescence of rare-earth elements in natural fluor-apatites. In: Journal of Luminescence, 1996, vol. 69, n° 5-6, p. 343-353. doi: 10.1016/S0022-2313(96)00114-7 https://archive-ouverte.unige.ch/unige:129928

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