The Electrochemical Detremination of Nitric Oxide in Seawater Media with MicroelectrodesReportar como inadecuado


The Electrochemical Detremination of Nitric Oxide in Seawater Media with Microelectrodes


The Electrochemical Detremination of Nitric Oxide in Seawater Media with Microelectrodes - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

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.



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. View Full-Text

Keywords: ISO-NOPMC microsensor; modified platinum microelectrode; Nitric oxide; Seawater; SNAP ISO-NOPMC microsensor; modified platinum microelectrode; Nitric oxide; Seawater; SNAP





Autor: Zhengbin Zhang 1,2,* , Lei Xing 1, Liqing Jiang 2, Yongchen Wang 2, Chunyan Ren 1 and Wei-Jun Cai 2,*

Fuente: http://mdpi.com/



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