Development of a silicon photodiode, electrogenerated chemiluminescence, flow-through detector

Abstract

A novel, solid-state, silicon photodiode (SPD) detector has been developed for use with analytical electrogenerated chemiluminescence (ECL), employing flow-injection techniques. The system has been tested using the ECL reaction of tris(2,2′-bipyridyl) ruthenium(II)[Ru(bpy)₃²⁺] and tripropylamine, in aqueous buffered solutions, achieving a log-linear calibration over 3 decades of concentration with a limit of detection of 140 ppb.