Electrochemical sensor for nitric oxide using layered films composed of a polycationic dendrimer and nickel(II) phthalocyaninetetrasulfonate deposited on a carbon fiber electrode

摘要: We have developed an electrochemical sensor for nitric oxide that is based on multi-layers of nickel(II) phthalocyaninetetrasulfonate and a polyamidoamine dendrimer assembled the surface carbon-fiber microelectrode. This responds to at working potential 800 mV with sensitivity 5.54 pA∙μM‾1 which, however, depends layer position deposited The limit detection as low 5.5 μM signal-to-noise ratio 3. electrode exhibits good selectivity over common interferents including dopamine, nitrite, hydrogen peroxide, norepinephrine, epinephrine ascorbic acid.