An Electrochemical Microsensor for the Detection of Nitric Oxide

An Electrochemical Microsensor for the Detection of Nitric Oxide
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用于检测一氧化氮的电化学微型传感器

DOI:
10.1080/00032719.2012.738348
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发表时间:
2013-03
期刊:
影响因子:
2
通讯作者:
Yaguang Chen
Yaguang Chen
中科院分区:
化学4区
文献类型:
--
作者:
Xiaojun Liu;Huimin Cao;Shanying Zhu;Yaguang Chen

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研制了一种检测一氧化氮的电化学微传感器。该微传感器是基于一种新型的纳米复合薄膜,具有良好的电催化氧化一氧化氮的效果。采用电化学技术、红外光谱和扫描电镜对纳米复合膜进行表征,并研究了一氧化氮的电化学行为。该微传感器成功地用于1.8 × 10−8 mol/L-7.6 × 10−5 mol/L标准溶液中一氧化氮的测定,检出限为5 nmol/L(S/N = 3)。所提出的微传感器的优点包括简单,分析时间短,成本效益和选择性。结果表明,一氧化氮测定在实际样品分析的可行性。
An electrochemical microsensor has been developed for the detection of nitric oxide. The microsensor was fabricated based on a novel nanocomposite film that has good electrocatalytic effect to the oxidation of nitric oxide. Electrochemical techniques, infrared spectroscopy, and scanning electron microscopy were used to characterize the nanocomposite film and the electrochemical behavior of nitric oxide were investigated. The microsensor was successfully used for the determination of nitric oxide in standard solutions from 1.8 × 10−8 mol/L–7.6 × 10−5 mol/L, with a low detection limit of 5 nmol/L (S/N = 3). The advantages of the proposed microsensor include simplicity, short analysis time, cost effectiveness, and selectivity. The results demonstrate the feasibility of a nitric oxide assay in practical sample analysis.
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