title: Mechanism study on inhibited Ru(bpy)3(2+) electrochemiluminescence between coreactants.
abstract: Electrochemiluminescence (ECL) derived from Ru(bpy)(3)(2+) and its derivatives has been proven to be useful in diverse areas of analytical chemistry. Up to date most of the applications are based on coreactant ECL technology. However, little attention has been paid to the ECL inhibition between coreactants. In this paper, the ECL inhibition behavior between coreactants was systematically investigated. The results showed that ECL inhibition happened not only within the same type of coreactants, but also between two different types of coreactants. Interestingly, for some weak coreactants, the detection methods based on ECL inhibition were much more sensitive than those based on ECL enhancement. Therefore, it is envisioned to establish sensitive inhibited ECL detection methods for these weak coreactants. A possible ECL inhibition mechanism related to the consumption of coreactant intermediates without light emission is proposed.
authors.affiliation: Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, 350002, China.
authors.forename: Longhua
authors.initials: L
authors.lastname: Guo
authors.forename: Lingling
authors.initials: L
authors.lastname: Xue
authors.forename: Bin
authors.initials: B
authors.lastname: Qiu
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Lin
authors.forename: Donghwan
authors.initials: D
authors.lastname: Kim
authors.forename: Guonan
authors.initials: G
authors.lastname: Chen
mesh_terms: D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D056831:Coordination Complexes; D004563:Electrochemistry / Q000379:methods; D005456:Fluorescent Dyes / Q000737:chemistry*; D008163:Luminescent Measurements / Q000379:methods*; D017975:Ruthenium Compounds
chemical_list: D015082:2,2'-Dipyridyl; D056831:Coordination Complexes; D005456:Fluorescent Dyes; C547232:tris(2,2-bipyridine)-ruthenium(II); D017975:Ruthenium Compounds