Citation: Xiao Xia CHEN, Fang WANG, Yan Xia XU, Sheng Shui HU. A Novel Amperometric Nitric Oxide Sensor Based on Polythionine/Nation Modified Glassy Carbon Electrode[J]. Chinese Chemical Letters, ;2006, 17(4): 496-498. shu

A Novel Amperometric Nitric Oxide Sensor Based on Polythionine/Nation Modified Glassy Carbon Electrode

1.
Depatment of Chemistry, Wuhan University, Wuhan 430072;
2.
State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Beijing 100084

Received Date: 22 August 2005

Fund Project: This research was supported by the National Natural Science Foundation of China. (Nos. 60571042 and 30370397).

A novel amperometric sensor for the determination of nitric oxide was developed by coating polythionine/nafion on a glassy carbon electrode. This sensor exhibited a great enhancement to the oxidation of nitric oxide. The oxidation peak currents were linear to the concentration of nitric oxide over the wide range from 3.6×10^-7 to 6.8×10^-5 mol·L^-1, and the detection limit was 7.2×10^-8 mol·L^-1. Experimental results showed that this nitric oxide sensor possessed excellent selectivity and longer stability. NO releasing from rat kidney was monitored by this sensor.
- Amperometric sensor,
- nitric oxide,
- thionine,
- electrochemistry
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