【摘要】 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．更多还原

【Abstract】 The preparation of the ultramicrosensor based on an electropolymerized film of ethylenebis (salicyldiminate) iron(Ⅱ) [p-Fe(salen)J, its response to NO and the machanism were described in this paper. We found that the ultramicrosensor based on the electropolymerized film of Fe(salen) and Nafion showed a high sensitivity and selectivity for NO determination with a linear range of 7. 2× 10-8 to 4. 4× 10-6 mol/L, a calculated detection limit of 3. 6× 10-8 mol/L and linear correlation coeffcient of 0. 9996. The ultramicrosensor could be free from the interference from some biological substances coexisting in biological fluid, such as ascorbate, uric acid, nitrite and metabolites of monoamines. The ultramicrosensor could meet the requirements of in vivo measurement of NO.更多还原