Effect of metal ions on Ru(bpy)₃²⁺ electrochemiluminescence

Abstract

Ethylenediaminetetraacetate (EDTA) was chosen for the investigation of the effect of metal ions on Ru(bpy)₃²⁺ electrochemiluminescence (ECL). Metal ions that are preferentially bound to the oxygen atoms (MI_O) have no effect on the intensity of ECL except for Al³⁺ and Y³⁺, whereas metal ions that are preferentially bound to the nitrogen atoms (MI_N) preclude the oxidation of EDTA and decrease the ECL intensity.

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