A new anodic electrochemiluminescence of tris(2,2′- bipyridine)ruthenium(II) with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide as a coreactant for determination of hydrogen peroxide

Efficient coreactants are of high importance in electrochemiluminescence sensing. Herein, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide was demonstrated as an effective coreactant for tris(2,2′-bipyridine)ruthenium(II) electrochemiluminescence system for the first time. The new electrochemiluminescence system showed a good sensing performance for H 2 O 2 on the basis of quenching of the electrochemiluminescence intensity. It allows the detection of H 2 O 2 in the dynamic range of 0.5–200 µM. The limit of detections for H 2 O 2 was 0.33 µM ( 3σ/m ). In addition, the developed ECL system exhibited satisfactory recoveries for H 2 O 2 sensing in real samples.