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 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.
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Lehrstuhl fur Analytische Chemie-Elektroanalytik and Sensorik, Ruhr-Univeristät Bochum, Universitätsstr. 150, D-44780 Bochum, Germany.
Oni
Joshua
J
Schuhmann
Wolfgang
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D004566:Electrodes; D008665:Metalloporphyrins / Q000737:chemistry*; D009569:Nitric Oxide / Q000032:analysis*; D010084:Oxidation-Reduction; D012680:Sensitivity and Specificity; D013499:Surface Properties
D008665:Metalloporphyrins; C503085:manganese(II) 5-(N-(8-pyrrolyl-3,6-dioxa-1-aminooctane)phenylamide)-10,15,20-trimethoxyphenylporphyin; D009569:Nitric Oxide