Electrocatalytic Reduction and Determination of Nitric Oxide at a Hemoglobin Modified Electrode
- 1 March 1997
- journal article
- research article
- Published by Informa UK Limited in Analytical Letters
- Vol. 30 (5), 1013-1023
- https://doi.org/10.1080/00032719708002314
Abstract
The chemically modified electrode, which was constructed by depositing hemoglobin at the surface of glassy carbon electrode, shows significant electrocatalytic activity to the reduction of nitric oxide. The cathodic peak potential is −0.68V (vs.SCE). The effect of solution pH on the electrochemistry of nitric oxide was also studied. When used as an amperometric detector, the current is linear with concentration in the range from 2.9×10−4 M to 1.1×10−2 M and the detection limit is 1×10−4 M nitrite.Keywords
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