ELECTROCATALYTIC REDUCTION AND DETERMINATION OF NITRIC-OXIDE AT A HEMOGLOBIN MODIFIED ELECTRODE

Authors
YU AM ZHANG HL CHEN HY
Citation
Am. Yu et al., ELECTROCATALYTIC REDUCTION AND DETERMINATION OF NITRIC-OXIDE AT A HEMOGLOBIN MODIFIED ELECTRODE, Analytical letters, 30(5), 1997, pp. 1013-1023
Citations number
23
Categorie Soggetti
Chemistry Analytical
Journal title
Analytical letters → ACNP
ISSN journal
00032719
Volume
30
Issue
5
Year of publication
1997
Pages
1013 - 1023
Database
ISI
SICI code
0003-2719(1997)30:5<1013:ERADON>2.0.ZU;2-W
Abstract
The chemically modified electrode, which was constructed by depositing hemoglobin at the surface of glassy carbon electrode, shows significa nt electrocatalytic activity to the reduction of nitric oxide. The cat hodic 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 th e range from 2.9x10(-4) M to 1.1x10(-2) M and the detection limit is 1 x10(-4) M nitrite.