A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite
The electrochemical properties of a new Co(II) deuteroporphyrin substituted by two electropolymerizable pyrrole groups has been investigated in organic solvent. This functionalization has allowed the preparation of the first example of a cobalt deuteroporphyrin film by oxidative electropolymerizatio...
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2003-07-01
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doaj-cea8c21319c143bc88d60d38df9f95972020-11-24T21:47:18ZengMDPI AGSensors1424-82202003-07-013721322210.3390/s30700213A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitriteMichael WedelFranz-Peter MontfortsRudolf WesselChantal GondranSerge CosnierThe electrochemical properties of a new Co(II) deuteroporphyrin substituted by two electropolymerizable pyrrole groups has been investigated in organic solvent. This functionalization has allowed the preparation of the first example of a cobalt deuteroporphyrin film by oxidative electropolymerization. The resulting conducting polypyrrole film exhibits the regular electroactivity of cobalt deuteroporphyrin. Compared to conventional cobalt porphyrin electrochemistry, the replacement of porphyrin macrocycle by deuteroporphyrin ring results in markedly more negative potential values for the metalcentered oxidation and reduction processes. The influence of NO2- as axial ligand on the reductive behavior of the electropolymerized cobalt (II) deuteroporphyrin is examined. The recognition properties of the film illustrated by the potentiometric shift of the Co(II)/(I) reduction were exploited for the determination of NO2- in the concentration range 2 10-6- 2.5 10-4 M.http://www.mdpi.com/1424-8220/3/7/213/DeuteroporphyrinCobaltPolypyrroleModified electrodeNitrite |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Michael Wedel Franz-Peter Montforts Rudolf Wessel Chantal Gondran Serge Cosnier |
spellingShingle |
Michael Wedel Franz-Peter Montforts Rudolf Wessel Chantal Gondran Serge Cosnier A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite Sensors Deuteroporphyrin Cobalt Polypyrrole Modified electrode Nitrite |
author_facet |
Michael Wedel Franz-Peter Montforts Rudolf Wessel Chantal Gondran Serge Cosnier |
author_sort |
Michael Wedel |
title |
A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite |
title_short |
A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite |
title_full |
A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite |
title_fullStr |
A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite |
title_full_unstemmed |
A poly(pyrrole-Cobalt(II)deuteroporphyrin) electrode for the potentiometric determination of nitrite |
title_sort |
poly(pyrrole-cobalt(ii)deuteroporphyrin) electrode for the potentiometric determination of nitrite |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2003-07-01 |
description |
The electrochemical properties of a new Co(II) deuteroporphyrin substituted by two electropolymerizable pyrrole groups has been investigated in organic solvent. This functionalization has allowed the preparation of the first example of a cobalt deuteroporphyrin film by oxidative electropolymerization. The resulting conducting polypyrrole film exhibits the regular electroactivity of cobalt deuteroporphyrin. Compared to conventional cobalt porphyrin electrochemistry, the replacement of porphyrin macrocycle by deuteroporphyrin ring results in markedly more negative potential values for the metalcentered oxidation and reduction processes. The influence of NO2- as axial ligand on the reductive behavior of the electropolymerized cobalt (II) deuteroporphyrin is examined. The recognition properties of the film illustrated by the potentiometric shift of the Co(II)/(I) reduction were exploited for the determination of NO2- in the concentration range 2 10-6- 2.5 10-4 M. |
topic |
Deuteroporphyrin Cobalt Polypyrrole Modified electrode Nitrite |
url |
http://www.mdpi.com/1424-8220/3/7/213/ |
work_keys_str_mv |
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