Electrocatalytic Oxidation of Guanine and DNA on a Carbon Paste Electrode Modified by Cobalt Hexacyanoferrate Films
- 25 August 2004
- journal article
- research article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 76 (19), 5690-5696
- https://doi.org/10.1021/ac049421f
Abstract
The electrochemical behavior of cobalt hexacyanoferrate complex adsorbed on a carbon paste electrode (CPE) and its application to the electrocatalytic oxidation of guanine and single-strand DNA (ss-DNA) in aqueous solution are investigated in this report. The modification of CPE by the adsorption of this complex results in excellent amplification of the guanine oxidation response of ss-DNA. The effects of paste composition, scan rate, DNA, and guanine concentration were studied. The detection limits of 52 and 920 ng mL-1 were obtained for guanine and ss-DNA, respectively.Keywords
This publication has 38 references indexed in Scilit:
- Electrocatalysis and Amperometric Detection of Hydrogen Peroxide at an Aluminum Microelectrode Modified with Cobalt Hexacyanoferrate FilmMicrochimica Acta, 2003
- Quartz crystal microbalance monitoring of mass transport during redox processes of cyanometallate modified electrodes: complex charge transport in nickel hexacyanoferrate filmsElectrochimica Acta, 2000
- Solid state voltammetric characterization of iron hexacyanoferrate encapsulated in silicaJournal of Solid State Electrochemistry, 2000
- Glucose microsensors based on carbon paste enzyme electrodes modified with cupric hexacyanoferrateAnalytica Chimica Acta, 1999
- Determination of thiocompounds by liquid chromatography with amperometric detection at a Nafion/indium hexacyanoferrate film modified electrodeAnalytica Chimica Acta, 1999
- Glucose determination in blood samples using flow injection analysis and an amperometric biosensor based on glucose oxidase immobilized on hexacyanoferrate modified nickel electrodeAnalytica Chimica Acta, 1997
- Countercation‐Sensitive Electrochromism of Cobalt Hexacyanoferrate FilmsJournal of the Electrochemical Society, 1996
- Prussian blue solid-state films and membranes as potassium ion-selective electrodesAnalytica Chimica Acta, 1990
- Prussian Blue Containing Nafion Composite Film as Rechargeable BatteryJournal of the Electrochemical Society, 1987
- Oscillographic Polarography of Highly Polymerized Deoxyribonucleic AcidNature, 1960