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Article – Journal of Advanced Chemical Sciences

Journal of Advanced Chemical Sciences, Volume 2,Issue 2,2016 Pages 293-295

Fluorescence Lifetime Investigation and Characterization of Dysprosium and Terbium Doped Taggants
A.U. Nkwoada*, Simon Officer

An investigation was made into the use of fluorescent materials called taggants that would give a better discrimination against the background interference arising from hydrocarbons and having a longer lifetime than other sources of interference. Borosilicate and tellurite glass host were doped with dysprosium and terbium rare earth elements. Their absorptions and fluorescence lifetime characterisation was used to determine their interaction and compatibility with cyclohexane and crude oil. The fluorescence lifetime test established Dysprosium doped glasses as the optimum taggants for cyclohexane and terbium doped tellurite glass as the ideal taggants in crude oil and both achieving better lifetime discriminations respectively.

Keywords: Fluorescence; Terbium; Dysprosium;