Electrochemical nitric oxide sensor preparation: a comparison of two electrochemical methods of electrode surface modification

Platinum electrodes modified with Mn(II) 5-( N-(8-pyrrole-yl-3,6-dioxa-1-aminooctane)phenylamide-10,15,20-trimethoxyphenylporphyrin (Mn(II)triOMeTCPPyP) using multi-sweep cyclic voltammetry and differential pulse amperometry were evaluated as electrocatalytic surfaces for the oxidation of nitric oxi...

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Bibliographic Details
Published in:Bioelectrochemistry (Amsterdam, Netherlands) Netherlands), 2005-04, Vol.66 (1), p.105-110
Main Authors: Diab, Nizam, Oni, Joshua, Schuhmann, Wolfgang
Format: Article
Language:English
Subjects:
Electrocatalysis
Electrodes
Manganese porphyrin
Metalloporphyrins - chemistry
Nitric oxide
Nitric Oxide - analysis
Oxidation-Reduction
Pulse amperometry
Sensitivity and Specificity
Surface Properties
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Summary:Platinum electrodes modified with Mn(II) 5-( N-(8-pyrrole-yl-3,6-dioxa-1-aminooctane)phenylamide-10,15,20-trimethoxyphenylporphyrin (Mn(II)triOMeTCPPyP) using multi-sweep cyclic voltammetry and differential pulse amperometry were evaluated as electrocatalytic surfaces for the oxidation of nitric oxide. The electrodes modified using the pulse amperometric approach were more sensitive towards the detection of nitric oxide. The increased sensitivity led to the attainment of a wider linear dynamic range for the quantification of nitric oxide.
ISSN:1567-5394
DOI:10.1016/j.bioelechem.2004.03.010