electrochemiluminescence in the presence of formaldehyde or formic acid

Electrogenerated chemiluminescence sensor for formaldehyde based on Ru(bpy)32+-doped silica nanoparticles modified Au electrode

“…This phenomenon indicated that there was a new intermediate generated on the Ru-DSNPs/Au electrode, which reacted with the oxidized Ru(bpy) 3 2+ generating emitter. Therefore, the ECL process should be not coincident with that reported in literature [21]. It was known that oxidation of HCHO may produce strong reducing intermediates, •CHO radical, which was consistent with the electrocatalytic reaction mechanism as tripropylamine (TPA)-Ru(bpy) 3 2+ system.…”

“…Hu et al [21] observed that HCHO could greatly enhance the ECL of Ru(bpy) 3 2+ at glassy carbon electrode, but not at Au and Pt electrode. In their study, the ECL of Ru(bpy) 3 2+ at Pt or Au electrode only has the first ECL peak and does not have the second ECL peak.…”

“…Among many of the electrogenerated systems, the Ru(bpy) 3 2+ based ECL is of good selectivity, high stability, and it has been used for detecting various samples [20]. Recently, ECL of Ru(bpy) 3 2+ using formaldehyde as coreactants have been investigated by Hu et al [21]. It can be used to determine formaldehyde in an aqueous solution.…”

Analysis of phenylephrine hydrochloride in pharmaceutical formulations and biological fluids using (2,2′-bipyridyl)ruthenium(ii)-peroxydisulphate chemiluminescence system in a two-chip microdevice

“…) is consumed by the hydroxide ions resulting in a high background signal and the decrease of the CL signal obtained due to the dehydration rate of the amino alcohol intermediate that increases with the increase in the pH value. 8,20 Fig. 2 Effect of different derivatizing agents on CL signal.…”

Highly efficient quenching of tris(2,2′-bipyridyl)ruthenium(ii) electrochemiluminescence by ozone using formaldehyde, methylglyoxal, and glyoxalate as co-reactants and its application to ozone sensing

“…24,25 It has been extensively used for immunoassays, 26 aptasensors, 27 DNA detection, 28 enzymatic biosensors, 29 and the detection of many co-reactants. 30,31 Co-reactant ECL can also be quenched by some compounds, 32,33 which has been utilized for analysis. For example, indigo carmine can quench ECL of Ru( phen) 3 2+ -doped silica nanoparticles, and ozone can cleave indigo carmine to enhance ECL, enabling the detection of ozone.…”