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报道了电化学聚合N,N-双水杨酸乙二胺合铁[p-Fe(salen)]一氧化氮(NO)超微传 感器的制备、NO的响应及机理研究.实验发现,用电化学聚合的方法制备的 p-Fe(salen)超微传感器对 NO的检测有高的灵敏度和好的选择性. NO的浓度在 7. 2× 10-8~4. 4× 10-6 mol/L范围内,氧化电流与浓度呈线性关系;线性相关系数为0.9996,检测限达3.6×10-8 mol/L;生物体中常见的物质如抗坏血酸、尿酸、儿茶酚胺类代谢产物、NO的氧化产物NO-2 等不干扰测定.所研制的传感器可用于NO的在体分析.
The electrochemical preparation of N, N-bis-salicylic acid [p-Fe (salen)] nitric oxide (NO) sensor and the response and mechanism of NO were reported. It was found that the p-Fe (salen) nanosensor prepared by electrochemical polymerization has high sensitivity and good selectivity for NO detection. NO concentration of 7. 2 × 10-8 ~ 4. In the range of 4 × 10-6 mol / L, there was a linear relationship between the oxidation current and concentration, the linear correlation coefficient was 0.9996 and the detection limit was 3.6 × 10-8 mol / L. Common substances in organisms such as ascorbic acid, Uric acid, catecholamine metabolites, NO-oxidation products such as NO-2 do not interfere with the determination. The developed sensor can be used for NO in vivo analysis.