Study on the Europium-2-Benzoyl-Indan-1,3-Dione-Trioctyl-Phosphine Oxide-Triton X-100 Fluorescence System and its Analytical Application

Abstract

A study of the fluorescence system of the Eu³⁺-2-benzoyl-indan-1,3-dione-trioctylphosphine oxide-Triton X-100 was made. The excitation and emission wavelengths were 348 and 612 nm, respectively. The fluorescence intensity was a linear function of the concentration of europium in the range 1.0×10⁻⁸ - 1.0×10⁻⁶ mol/L. The detection limit was 4.0×10⁻⁹ mol/L. The standard addition method was used for the determination of europium in rare earth oxides, with satisfactory results.

Key Words:

• Europium
• 2-benzoyl-indan-1,3-dione
• fluorimetry