Abstract

Electrochemiluminescence (ECL) of tris(2,2′-bipyridyl)ruthenium [ Ru ( bpy ) 3 2 + ] has received considerable attention. By immobilizing Ru ( bpy ) 3 2 + on an electrode surface, solid-state ECL provides several advantages over solution-phase ECL, such as reducing consumption of expensive reagent, simplifying experimental design and enhancing the ECL signal. This review presents the state of the art in solid-state ECL of Ru ( bpy ) 3 2 + . It briefly covers the mechanism of ECL of Ru ( bpy ) 3 2 + , some recent developments in fabrication of solid-state ECL sensors, analytical applications of ECL and alignment of ECL with capillary electrophoresis (CE), microchip CE, flow-injection analysis, high-performance liquid chromatography. It also indicates the outlook in this field.

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