Electrochemiluminescence from Ru(bpy)(3)2+ immobilized in poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate)-poly(vinyl alcohol) composite films.
Electrochemical behavior and electrogenerated chemiluminescence (ECL) of tris(2,2'-bipyridyl)ruthenium(II) (Ru(bpy)(3)(2+)) immobilized in poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate)-poly(vinyl alcohol) (PEDOT/PSS-PVA) composite films via ion-exchange have been investigated with tripropylamine (TPA) as the co-reactant at a glassy carbon electrode. The immobilized Ru(bpy)(3)(2+) performed a surface-controlled electrode reaction. The Ru(bpy)(3)(2+) modified electrode showed a fast ECL response to TPA, and was used for the ECL detection of TPA with high sensitivity. The ECL intensity was linearly related to concentrations of TPA over the range from 0.50 micromol L(-1) to 0.80 mmol L(-1), and the detection limit was 0.10 micromol L(-1) (S/N=3). The as-prepared electrode exhibited good precision and long-term stability for TPA determination.
Sun
Chunyan
C
Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing, China.
Lu
Wu
W
Gao
Yanfang
Y
Li
Jinghong
J
D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D053000:Analytic Sample Preparation Methods; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry; D056831:Coordination Complexes; D003365:Costs and Cost Analysis; D004553:Electric Conductivity; D004563:Electrochemistry; D004566:Electrodes; D005898:Glass / Q000737:chemistry; D049449:Luminescence; D011108:Polymers / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D011437:Propylamines / Q000032:analysis; D055672:Static Electricity; D013499:Surface Properties; D013997:Time Factors; D017975:Ruthenium Compounds
D015082:2,2'-Dipyridyl; D019086:Bridged Bicyclo Compounds, Heterocyclic; D002244:Carbon; D056831:Coordination Complexes; D011108:Polymers; D011137:Polystyrenes; D011142:Polyvinyl Alcohol; D011437:Propylamines; C121383:poly(3,4-ethylene dioxythiophene); C547232:tris(2,2-bipyridine)-ruthenium(II); D017975:Ruthenium Compounds; C096226:tripropylamine; C003321:polystyrene sulfonic acid