title: Electrosynthesis of poly-o-diaminobenzene on the Prussian Blue modified electrodes for improvement of hydrogen peroxide transducer characteristics.
abstract: Electropolymerisation of nonconducting polymer, poly-(1,2-diaminobenzene) on the top of Prussian Blue (PB) modified electrode led to significant improvement of resulting hydrogen peroxide transducer selectivity and operational stability. The reported transducer retained 100% of response during 20 h under the continuous flow of 0.1 mM H(2)O(2), and thus improves the stability level in selective peroxide detection by one order of magnitude. The selectivity value of the PB-poly(1,2-DAB) based H(2)O(2) sensor in relation to ascorbate is approximately 600. No signals to acetaminophen and urate were investigated. PB-poly(1,2-diaminobenzene) modified electrode allows the detection of H(2)O(2) in the flow-injection mode down to 10(-7) M with the sensitivity 0.3 A M(-1) cm(-2), which is only two times lower compared to the uncovered PB based transducer.
authors.affiliation: Faculty of Chemistry, M.V. Lomonosov Moscow State University, 119899 Moscow, Russia. lukachova@enzyme.chem.msu.ru
authors.forename: Lilia V
authors.initials: LV
authors.lastname: Lukachova
authors.forename: Elena A
authors.initials: EA
authors.lastname: Kotel'nikova
authors.forename: Daniele
authors.initials: D
authors.lastname: D'Ottavi
authors.forename: Egor A
authors.initials: EA
authors.lastname: Shkerin
authors.forename: Elena E
authors.initials: EE
authors.lastname: Karyakina
authors.forename: Danila
authors.initials: D
authors.lastname: Moscone
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Palleschi
authors.forename: Antonella
authors.initials: A
authors.lastname: Curulli
authors.forename: Arkady A
authors.initials: AA
authors.lastname: Karyakin
mesh_terms: D004566:Electrodes; D005295:Ferrocyanides / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D010655:Phenylenediamines / Q000138:chemical synthesis*
chemical_list: D005295:Ferrocyanides; D010655:Phenylenediamines; C453960:poly-(1,2-diaminobenzene); D006861:Hydrogen Peroxide; C000170:ferric ferrocyanide