TY - JOUR
T1 - Electrogenerated Chemiluminescence of Luminol Mediated by Carbonate Electrochemical Oxidation at a Boron-Doped Diamond
AU - Irkham,
AU - Rais, Raishaqy R.
AU - Ivandini, Tribidasari A.
AU - Fiorani, Andrea
AU - Einaga, Yasuaki
N1 - Funding Information:
A.F. acknowledges the Japan Society for the Promotion of Science (Fellowship ID No. P19333) and Grant-in-Aid for JSPS Fellows (19F19333). Also, this work was partially supported by Grant-in-Aid for Scientific Research A 19H00832 (to Y.E.).
Publisher Copyright:
© 2020 American Chemical Society.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/2/2
Y1 - 2021/2/2
N2 - The electrogenerated chemiluminescence of luminol is a process by which light generation is triggered by adding hydrogen peroxide and then applying a suitable electrode potential. Here, we take this phenomenon one step forward by avoiding the addition of hydrogen peroxide using a smart combination of a boron-doped diamond electrode and a carbonate electrolyte to generate the hydrogen peroxide directly in situ. The reaction occurs because of the carbonate electrochemical oxidation to peroxydicarbonate and the following hydrolysis to hydrogen peroxide, which triggers the emission from luminol. The electrogenerated chemiluminescence emission has been optimized by an investigation of the applied potentials, the carbonate concentration, and the pH. Furthermore, these results have been used to shine a light on the reaction mechanisms. Because this method does not require the addition of hydrogen peroxide, it might find application in efforts to avoid instability of hydrogen peroxide or its interference with the analytes of interest.
AB - The electrogenerated chemiluminescence of luminol is a process by which light generation is triggered by adding hydrogen peroxide and then applying a suitable electrode potential. Here, we take this phenomenon one step forward by avoiding the addition of hydrogen peroxide using a smart combination of a boron-doped diamond electrode and a carbonate electrolyte to generate the hydrogen peroxide directly in situ. The reaction occurs because of the carbonate electrochemical oxidation to peroxydicarbonate and the following hydrolysis to hydrogen peroxide, which triggers the emission from luminol. The electrogenerated chemiluminescence emission has been optimized by an investigation of the applied potentials, the carbonate concentration, and the pH. Furthermore, these results have been used to shine a light on the reaction mechanisms. Because this method does not require the addition of hydrogen peroxide, it might find application in efforts to avoid instability of hydrogen peroxide or its interference with the analytes of interest.
UR - http://www.scopus.com/inward/record.url?scp=85097882045&partnerID=8YFLogxK
U2 - 10.1021/acs.analchem.0c04212
DO - 10.1021/acs.analchem.0c04212
M3 - Article
AN - SCOPUS:85097882045
SN - 0003-2700
VL - 93
SP - 2336
EP - 2341
JO - Analytical Chemistry
JF - Analytical Chemistry
IS - 4
ER -