Laser-induced time-resolved luminescence as a means for discrimination of oxidation states of Eu in minerals

M. Gaft, R. Reisfeld, G. Panczer, O. Ioffe, I. Sigal

Research output: Contribution to journalConference articlepeer-review

11 Scopus citations

Abstract

Simultaneous detection of divalent and trivalent europium is investigated by time-resolved laser-induced luminescence in a number of minerals. The selectivity of detection is possible by using different time delays after excitation, different gate widths and different excitation wavenumbers. This technique allows detection of Eu luminescence in minerals in which it is hidden by other luminescence centers in the steady-state luminescence spectra. In such a manner we detected Eu2+ and two different Eu3+ luminescence centers in apatite and fluorite, Eu2+ and Eu3+ luminescence in datolite and danburite, and Eu3+ luminescence in zircon and calcite.

Original languageEnglish
Pages (from-to)842-846
Number of pages5
JournalJournal of Alloys and Compounds
Volume323-324
DOIs
StatePublished - 12 Jul 2001
Externally publishedYes
Event4th International Conference on f-Elements - Madrid, Spain
Duration: 17 Sep 200021 Sep 2000

Keywords

  • Apatite
  • Europium
  • Luminescence
  • Minerals
  • Time-resolved

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