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

1999; Royal Society of Chemistry; Volume: 124; Issue: 7 Linguagem: Inglês

10.1039/a901153f

1364-5528

Guobao Xu, Shaojun Dong,

Analytical Chemistry and Sensors

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 (MIO) have no effect on the intensity of ECL except for Al3+ and Y3+, whereas metal ions that are preferentially bound to the nitrogen atoms (MIN) preclude the oxidation of EDTA and decrease the ECL intensity.