Paper Info
Title
Peroxynitrite Sensor Based on a Screen Printed Carbon Electrode Modified with a Poly(2, 6-dihydroxynaphthalene) Film.
Abstract
For the first time the electropolymerization of 2,6-dihydroxynaphthalene (2,6-DHN) on a screen printed carbon electrode (SPCE) was investigated and evaluated for peroxynitrite (PON) detection. Cyclic voltammetry was used to electrodeposit the poly(2,6-DHN) on the carbon electrode surface. The surface morphology and structure of poly(2,6-DHN) film were investigated by SEM and FTIR analysis, and the electrochemical features by cyclic voltammetry. The poly(2,6-DHN)/SPCE sensor showed excellent electrocatalytic activity for PON oxidation in alkaline solutions at very low potentials (0-100 mV vs. Ag/AgCl pseudoreference). An amperometric FIA (flow injection analysis) system based on the developed sensor was optimized for PON measurements and a linear concentration range from 2 to 300 mu M PON, with a LOD of 0.2 mu M, was achieved. The optimized sensor inserted in the FIA system exhibited good sensitivity (4.12 nA.mu M-1), selectivity, stability and intra-/inter-electrode reproducibility for PON determination.
Year
DOI
Venue
2016
10.3390/s16111975
SENSORS
Keywords
Field
DocType
2,6-dihydroxynaphthalene,electropolymerization,screen printed carbon electrode,peroxynitrite,cyclic voltammetry,amperometry,flow injection analysis,electrocatalysis
Analytical chemistry,Amperometry,Electrocatalyst,Electronic engineering,Cyclic voltammetry,Flow injection analysis,Engineering,Selectivity,Electrochemistry,Electrode,Fourier transform infrared spectroscopy
Journal
Volume
Issue
ISSN
16
11.0
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Ioana Silvia Hosu100.34
Diana Constantinescu-Aruxandei200.34
Maria-Luiza Jecu300.34
Florin Oancea410.82
Mihaela Badea500.68