%0 Journal Article
%T The Electrochemical Detremination of Nitric Oxide in Seawater Media with Microelectrodes
%A Zhengbin Zhang
%A Lei Xing
%A Liqing Jiang
%A Yongchen Wang
%A Chunyan Ren
%A Wei-Jun Cai
%J Sensors
%D 2003
%I MDPI AG
%R 10.3390/s30800304
%X The electrochemical determination of nitric oxide in seawater with microelectrodes is reported in this paper. Two electrodes, ISO-NOPMC microsensor and modified platinum microelectrode, are evaluated for their performance in seawater. The peak current is found to be linear with the NO concentration in the range 1กม10-6-1.2กม10-5 mol/l for both microelectrodes. The detection limit of ISO-NOPMC microsensor is 1.4กม10-8 mol/l. Two methods for calibration of NO sensor, saturated NO solutions and decomposition of S-nitroso-acetyl-DL-penicillamine (SNAP), are discussed and compared. In addition, we examined the performance degradation of these microelectrodes in seawater due to complexation with seawater components.
%K ISO-NOPMC microsensor
%K modified platinum microelectrode
%K Nitric oxide
%K Seawater
%K SNAP
%U http://www.mdpi.com/1424-8220/3/8/304