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Sensors 2003, 3(8), 304-313; doi:10.3390/s30800304
Article
The Electrochemical Detremination of Nitric Oxide in Seawater Media with Microelectrodes
Zhengbin Zhang 1,2,*
, Lei Xing 1 , Liqing Jiang 2 , Yongchen Wang 2 , Chunyan Ren 1 and Wei-Jun Cai 2,*
, Lei Xing 1 , Liqing Jiang 2 , Yongchen Wang 2 , Chunyan Ren 1 and Wei-Jun Cai 2,*
1
Institute of Marine Chemistry, Ocean University of China, Qingdao 266003, China
2
Department of Marine Science, the University of Georgia, Athens, GA 30602, USA
* Authors to whom correspondence should be addressed.
Received: 15 April 2003 / Accepted: 2 May 2003 / Published: 22 August 2003
(This article belongs to the Special Issue Nitric Oxide Sensors and Their Applications in Biomedical Research)
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Abstract: 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 1×10-6-1.2×10-5 mol/l for both microelectrodes. The detection limit of ISO-NOPMC microsensor is 1.4×10-8 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.
Keywords: ISO-NOPMC microsensor; modified platinum microelectrode; Nitric oxide; Seawater; SNAP
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MDPI and ACS Style
Zhang, Z.; Xing, L.; Jiang, L.; Wang, Y.; Ren, C.; Cai, W.-J. The Electrochemical Detremination of Nitric Oxide in Seawater Media with Microelectrodes. Sensors 2003, 3, 304-313.
AMA StyleZhang Z, Xing L, Jiang L, Wang Y, Ren C, Cai W-J. The Electrochemical Detremination of Nitric Oxide in Seawater Media with Microelectrodes. Sensors. 2003; 3(8):304-313.
Chicago/Turabian StyleZhang, Zhengbin; Xing, Lei; Jiang, Liqing; Wang, Yongchen; Ren, Chunyan; Cai, Wei-Jun. 2003. "The Electrochemical Detremination of Nitric Oxide in Seawater Media with Microelectrodes." Sensors 3, no. 8: 304-313.