Electrochemical Behavior of Carbon Nanotube/Mn(III) Salen Doped Carbon Paste Electrode and Its Application for Sensitive Determination of N-acetylcysteine in the Presence of Folic Acid

Hadi Beitollahi; Iran Sheikhshoaie

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Electrochemical Behavior of Carbon Nanotube/Mn(III) Salen Doped Carbon Paste Electrode and Its Application for Sensitive Determination of N-acetylcysteine in the Presence of Folic Acid

机译：碳纳米管/ Mn（III）Salen掺杂碳糊电极的电化学行为及其在叶酸存在下灵敏测定N-乙酰半胱氨酸中的应用

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A novel electrochemical sensor for the selective and sensitive detection of N-acetylcysteine (NAC) inpresence of large excess of folic acid (FA) at physiological pH was developed by the bulk modificationof carbon paste electrode (CPE) with carbon nanotubes (CNTs) and Mn(III) salen. Large peakseparation, good sensitivity and stability allow this modified electrode to analyze NAC individuallyand simultaneously along with FA. Applying square wave voltammetry (SWV), a linear dynamicrange of 5.010-8- 3.3510-4 M with detection limit of 35.0 nM was obtained for NAC. Finally, theproposed method was applied to the determination of NAC and FA in some real samples.

机译：通过使用碳纳米管和碳纳米管对碳糊电极（CPE）进行大量修饰，开发了一种新型的电化学传感器，用于选择性和灵敏地检测在生理pH下大量过量叶酸（FA）存在的N-乙酰半胱氨酸（NAC）（III）萨伦。较大的峰分离度，良好的灵敏度和稳定性使该改进型电极能够单独和同时与FA一起分析NAC。应用方波伏安法（SWV），获得了NAC的线性动态范围为5.010-8- 3.3510-4 M，检测极限为35.0 nM。最后，将该方法用于实际样品中NAC和FA的测定。

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《International Journal of Electrochemical Science》 |2012年第8期|共15页
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Hadi Beitollahi; Iran Sheikhshoaie;
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Electrochemical Behavior of Carbon Nanotube/Mn(III) Salen Doped Carbon Paste Electrode and Its Application for Sensitive Determination of N-acetylcysteine in the Presence of Folic Acid

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