Jy. Jin et al., Determination of nitric oxide with ultramicrosensors based on electropolymerized films of metal tetraaminophthalocyanines, TALANTA, 48(5), 1999, pp. 1005-1011
Preparation and electrochemical responses to nitric oxide (NO) of the elect
ropolymerized films of metal tetraaminophthalocyanines (MTAPc, M = Co, Ni,
Cu) are studied to test them as molecular devices for design and constructi
on of amperometric ultramicrosensors for selective and sensitive determinat
ion of NO. The ultramicrosensors based on electropolymerized films of MTAPc
and Nafion, are found to show a low detection limit, high selectivity and
sensitivity to NO determination. The potential interference from some endog
enous electroactive substances in biological tissues, such as catecholamine
s and their metabolites, ascorbic acid (AA), uric acid (UA), and nitrite (N
O;), the metabolite of NO at the concentrations higher than those in biolog
ical systems could be eliminated by using a technique of DPV or DPA and fur
ther coating the modified ultramicrosensors with a layer of Nafion. (C) 199
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